Reddit mentions: The best serial port cards
We found 36 Reddit comments discussing the best serial port cards. We ran sentiment analysis on each of these comments to determine how redditors feel about different products. We found 18 products and ranked them based on the amount of positive reactions they received. Here are the top 20.
1. StarTech.com USB to Serial Adapter - 1 port - USB Powered - FTDI USB UART Chip - DB9 (9-pin) - USB to RS232 Adapter (ICUSB2321F),Black
- MULTI-USE FUNCTIONALITY: Use this versatile USB to serial RS232 adapter for everything from digital signage to connecting point of sale systems and barcode scanners.
- CUSTOMIZABLE SOLUTION: This USB serial hub features an FTDI chipset, making it highly customizable and compatible, and the ideal solution for any setup.
- COMPACT DESIGN: Designed with a small form factor, this serial RS232 converter is USB powered and requires no bulky power adapters or an outlet.
- EASY INSTALLATION: This serial adapter lets you enjoy simple installation and operation with COM port retention that provides robust serial connectivity for legacy devices.
Features:

Specs:
Color | Black |
Height | 0.8661417314 Inches |
Length | 1.7716535415 Inches |
Number of items | 1 |
Size | 1 Port |
Weight | 0.1984160358 Pounds |
Width | 1.63385826605 Inches |
2. StarTech.com U.2 to PCIe Adapter - x4 PCIe - For 2.5" U.2 NVMe SSD - SFF-8639 PCIe Adapter - U.2 SSD - PCIe SSD - U.2 drive (PEX4SFF8639)
- Mount a 2.5" U.2 NVMe SSD into your desktop computer or server, using an available PCIe expansion slot
- Boost system speed and performance by adding a PCIe NVMe U.2 SSD to your PC
- Simplify system builds with a U.2 to PCIe adapter that mounts your SSD directly to the adapter with no need for adapter cables. Utilize the advanced performance of a PCIe NVMe 2.5 in. SSD for intensive data workloads.
- PCI Express 3.0 x4 lane host adapter / Compatible with PCIe 3.0 and 2.0 motherboards
- NVMe PCIe Adapter / PCIe NVMe SSD Adapter / SFF-8639 PCIe Adapter / U.2 PCIe Card / PCIe SSD / U.2 SSD PCIe Adapter
Features:

Specs:
Color | Red |
Height | 0.9 Inches |
Length | 6.5 Inches |
Number of items | 1 |
Size | 0.9" x 4.8" x 6.5" |
Weight | 0.1433004703 Pounds |
Width | 4.8 Inches |
3. Best Compute M.2 PCIe SSD to PCIe 3.0 x4 and M.2 SATA SSD to SATA III Adapter Card
Supports one M.2 PCIe (NVMe or AHCI) SSD and a second M.2 SATA 6Gbps SSD simultaneously. Supports M.2 form factors 2230, 2242, 2260 and 2280.Converts one M.2 (M Key) interface to PCIe 3.0 x4 interface (PCIe 2.0 Compatible). Converts one M.2 (B Key) interface to SATA 6Gbps interface (SATA connection ...

Specs:
Height | 1.5 Inches |
Length | 5.5 Inches |
Width | 5.5 Inches |
4. StarTech.com 1 Port Native ExpressCard RS232 Serial Adapter Card with 16950 UART - ExpressCard 54 Serial Card (EC1S952)
Add a high-speed RS-232 Serial port to your laptop computer via an ExpressCard expansion slotExpresscard Serial CardRS232 CardCompatible with both 34mm and 54mm ExpressCard slots; includes a slot spacer for greater security while installed in 54mm slotsSingle chip design optimizes speed, reliability...

Specs:
Height | 5.91 Inches |
Length | 8.43 Inches |
Number of items | 1 |
Weight | 0.07495716908 Pounds |
Width | 1.73 Inches |
5. Syba PCI-Express x1 4 Port RS232 Serial Card, Moschip 9904 Chipset, Fan-Out Cable
Compliant with PCI-Express Base Specification Revision 1.0aBased on MCS9904 ChipsetSingle-Lane (x1) PCI-Express with Throughput up to 2.5GbpsOctopus Cable IncludedSerial Port (RS-232) InterfaceForm Factor: Plug-in Card

Specs:
Height | 5.6 Inches |
Length | 7 Inches |
Number of items | 1 |
Release date | August 2009 |
Size | 2 port |
Weight | 0.65 Pounds |
Width | 3 Inches |
6. Dual Port Serial Industrial DB9 COM RS232 PCIe X1 Card for Desktop PC with Low Bracket Moschip MCS9922
- Fully compliant with PCI-Express base Specification Revision 1.0A
- Chipset: MCS9922
- Included Low profile bracket
- Compatible with industrial standard 16C550 UART
- On chip 256-byte depth FIFO in transmit
- Form Factor: Low-profile
Features:

Specs:
Color | Black |
Height | 1.2 Inches |
Length | 5.6 Inches |
Number of items | 1 |
Release date | December 2014 |
Size | 2 port |
Weight | 0.220462262 Pounds |
Width | 4.8 Inches |
7. StarTech.com 2 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART (PEX2S952),Green
- Add 2 RS-232 serial ports to your full height or low profile computer through a PCI Express slot
- PCI Express Serial Card
- PCI-e Serial Card
- PCI Express RS232
- RS232 Card
Features:

Specs:
Color | Green |
Height | 0.99 Inches |
Length | 4.99 Inches |
Number of items | 1 |
Size | 2 Port |
Weight | 0.299 Pounds |
Width | 3.79 Inches |
8. IO Crest 4 Port RS-232 Serial PCIe 2.0 X1 Controller Card Components SI-PEX15042
Ear chipset: XR17V358RS485 signals: data+ (B) data- (a) GNDRS422 signals: T/R+ T/R- RXD+ RXD- GND600W Surge protection, 15kV ESD protection for Serial PortsWorking mode: Asynchronous working, point-to-point to point-to-multipoint 2 wires (half duplex) 4 wires (full duplex)

Specs:
Height | 1.8 Inches |
Length | 9.6 Inches |
Number of items | 1 |
Size | PCIe x1 |
Weight | 0.8 Pounds |
Width | 5.68 Inches |
9. StarTech.com 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCI Express - Breakout Cable - RS232 Extension - PCIe Serial Card (PEX4S553B)
Add 4 RS232 serial ports to any PC using a single PCI Express expansion slotRS232 CardPCI Serial Card AdapterPCI Express Serial CardPCI-e Serial Card

Specs:
Color | red |
Height | 2.7 inches |
Length | 3.17 inches |
Number of items | 1 |
Size | Low Profile |
Weight | 0.11 Pounds |
Width | 0.47 inches |
10. StarTech.com 4 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART (PEX4S952LP)
Four high speed RS-232 serial ports with data transfer rate up to 460.8 KbpsHigh Performance Dual Channel Oxford 950 UARTHalf-height mounting bracket installed for low profile cases; includes standard profile bracketNative single-Chip, single lane PCI Express128-byte deep FIFO per transmitter and re...

Specs:
Color | Green |
Height | 0.787401574 Inches |
Length | 3.543307083 Inches |
Number of items | 1 |
Size | 4P Low Profile |
Weight | 0.1322773572 Pounds |
Width | 3.149606296 Inches |
11. GLOTRENDS M.2 NVME Adapter Card with Full Covering Aluminum Panel Built-in Fan (PA10-FAN)
- GLOTRENDS M.2 PCIE NVMe Adapter card converts M.2 (M Key) interface to PCIe 3.0 x4 interface (32Gbps speed at Max); Supports PCIe Gen3 and PCIe Gen2 M.2 NGFF 80mm,60mm,42mm,30mm SSD. Supports PCIe 1.0, PCIe 2.0 and PCIe 3.0 motherboard. PCIE X4/X8/X16 lane installation.
- Extra-large aluminum heatsink panel with built-in FAN. GLOTRENDS PA10-FAN can keep your NVMe SSD at 50c level even long time full load. Your system will be smooth and no sudden throttle, your valuable data will protect well.
- Multi-layer PCBA, Multi-layer protection: Overcurrent protection,Overvoltage protection,Short circuit protection,EMI (Electromagnetic Interference) protection. Maximum protection of M.2 NVMe SSD from electrical signal interference. In addition, full covering aluminum panel protect SSD from sudden collision or touch, which generate static electricity.Even more, moisture and dust can also affect the maintenance of the SSD. Sealed aluminum cover will keep your SSD under the safest environment.
- GLOTRENDS NVMe adapter is apply to all kinds of M.2 NVMe/AHCI SSD, transparent to OS and no driver required. Supports any OS like Windows, Mac and Linux. Go to NVMe SSD manufacture website for driver installation if your PC can not recognize NVMe SSD. Win7 and Windows Server 2008 R2 need additional driver for NVMe SSD. OS booting from NVMe is a little complicated, Win10 is recommend. Prerequisites : 1) OS support NVMe; 2) 64-bit OS for UEFI support. Consult MB manufacture for installation.
- Full refund within 30 days for whatever reasons. No Questions Ask! 12-month warranty, covering all quality problems – we’ll offer you free replacement or full refund. Just email us for whatever issues, you will receive friendly customer service within 24 hours and we’ll save your time from product returning.
Features:

Specs:
Color | PA10-FAN |
12. StarTech.com 2 Port PCI Express eSATA Controller Adapter Card - Dual Port PCIe eSATA Card w/Low Profile/Half-Height Bracket (PEXESATA2)
- 2 external eSATA ports
- Support for FIS and Command-based Port Multiplier technology
- Large capacity drive support with 48-bit Logical Block Addressing (LBA)
- Drive Hot-Plugging support
- Support for Native Command Queuing (NCQ)
Features:

Specs:
Height | 1.89 Inches |
Length | 8.66 Inches |
Number of items | 1 |
Weight | 0.1496277372194 Pounds |
Width | 6.3 Inches |
13. SIIG 1Ser 16550 DB9 ISA Hi Speed Serial Pro I/O Hi Irq
Works with all types of high-speed serial port devices including 56 Kbps modems, label printers, and PDAsSupports Windows 95, 98, and NT and other major operating systemsSupports I/O address COM ports 2 to 4Requires 1 available ISA slot on PCStandard 5-year warranty

Specs:
Height | 2.25 Inches |
Length | 11.25 Inches |
Weight | 0.88 Pounds |
Width | 6.5 Inches |
14. Rosewill Single Parallel (SPP/PS2/EPP/ECP) Universal Low-Profile PCI Card Components Other RC-302
- Multi-card capability lets you add cards as your needs increase
- Made in China
- Package Dimensions : 1.0 L x 1.0 H x 1.0 W (inches)
- Package Weight : 1.0 pounds
Features:

Specs:
Height | 1.31 Inches |
Length | 7.91 Inches |
Number of items | 1 |
Weight | 0.25 Pounds |
Width | 5.51 Inches |
15. Size Original CPU Cooler for Ryzen Compatible AM4 Mounting Kit Type A
Supported cooler: Toru Toru scktt-1000, infinite 4 scmg-4000, infinite 5 scmg-5000Supported cooler: Infinity scmgd-1000, ashura scasr-1000, amber scttm-1000b* when using scmg-5000 (Infinity 5), use only the AM4 plate supplied with the mounting kit.Do not use The screws and spacers supplied with the ...

Specs:
Height | 0 Inches |
Length | 0 Inches |
Number of items | 1 |
Release date | May 2019 |
Weight | 0.1 Pounds |
Width | 0 Inches |
16. USB to RS232 Serial 9 Pin DB9 Cable Adapter w/ Driver Disc for PC/MAC/PDA/Modem or Any Serial Port Devices
- Compatible with: windows 98/98SE/ME/2000/XP/VISTA/WINDOWS7, Mac OS 8.6 and above/OSX/Linux
- Length: 3 feet
- USB bus powered and fully speed communication
- Over 1 Mbps data transfer rate
- Support RS232 serial interface (DB25 or DB9)
Features:

17. HP N4G85AT Dual Band Wireless AC 7265 Network Adapter PCI Express mini Card 802.11 B/A/G/n, Black/Silver
- Less time waiting, more time enjoying
- More capacity for supporting more devices and streaming more, in more places simultaneously
- Dual-mode Bluetooth 4.0 connects to the low-energy Bluetooth products as well as your familiar devices, such as headsets, keyboard, mice, and more
- Maintains network connectivity with very Low power consumption to enable updates to your email, social networks, and more, when your screen is off in standby mode
Features:

Specs:
Color | Black/Silver |
Height | 0.5 Inches |
Length | 0.5 Inches |
Weight | 0.8 Pounds |
Width | 0.5 Inches |
18. StarTech.com 8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART - 8 Port PCIe RS232 Serial Card (PEX8S952)
- Add 8 RS232 serial ports to your computer via a single PCI Express slot
- 8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART
- PCI Express serial card / PCIe serial card / PCI Express RS232 / RS232 card / PCI serial adapter
- Native single-Chip, single lane PCI Express design reduces overall load on the CPU
- Breakout dongle cable included
Features:

Specs:
Height | 5.91 inches |
Length | 8.7 inches |
Number of items | 1 |
Size | 8 Port |
Weight | 1.43 pounds |
Width | 2.13 inches |
🎓 Reddit experts on serial port cards
The comments and opinions expressed on this page are written exclusively by redditors. To provide you with the most relevant data, we sourced opinions from the most knowledgeable Reddit users based the total number of upvotes and downvotes received across comments on subreddits where serial port cards are discussed. For your reference and for the sake of transparency, here are the specialists whose opinions mattered the most in our ranking.
My list for mobile/portable operating would look something like this...
For a man portable setup I could carry in a pack, the highest capacity LiFePO4 battery I could afford.
Otherwise, if I'm driving out to a fixed operating site, then the biggest AGM deep cycle battery I would care to lug from the car a short distance to the operating site.
A lightweight computer with good battery life so I don't have to worry about external power for it out in the field. I'm not really a Mac guy, but I'd probably bring my Macbook Pro for this task.
The TS-480 doesn't require a Signalink/Rigblaster type interface for digital operation, but you will need the following items to interface to your computer...
The filters aren't truly necessary and the unit is pretty frequency stable without the TCXO, but they sure are nice to have. If you were going to put a filter in it, I would recommend the 500Hz CW filter. It comes in handy when you're trying to zero in on a particular signal or block adjacent strong signals. The DSP filtering is generally adequate, but a strong enough signal is going to swamp the AGC and that's when the crystal filters come in handy to notch that out.
If you do get the TCXO, don't waste $110 on the Kenwood SO-3. The cheap Chinese TCXO's work just as well and can be had for much cheaper. I got mine from ebay for 20 bucks or so, but now you can even get them on Amazon with Prime shipping and everything.
Antenna choice is highly variable. Out here in the deserts of New Mexico, you don't find much in the way of trees, so a wire antenna deployed up into a tree is out and a self supporting vertical is in. I generally pack an MFJ 1979 telescoping vertical whip with a clamping antenna mount or a collapsable fiberglass pole that I can hoist up a length of wire with. Your own situation, available terrain, bands you want to work are going to be the determining factors here.
This page has some useful notice on power draw of the TS-480 with some operating scenarios and battery sizing options. A lightweight, power sipping QRP rig the TS-480 is not, but it's still very usable for portable operations.
A car adapter? Mine came with one. As for the power supply id recommend this
Here is what i bought to track with it.
PC interface Cable
Serial Adapter
And finally this, but this is optional to you. Youll probably eventually want to image from your backyard, and if you do youll want this. AC Adapter
Another thing, Unluckily for me and for you, the mount does not come with a polar scope. Do some research to what kind you want, but I got this one
Other than that, Good luck! If you ever want some real time advice come check out the chat room under the useful links tab on the side of the subreddit! Chances are I'll be there, or one of the AP gurus.
Sorry for taking so long to get back to you, I recommend getting a laptop with an express card slot.
For example, here, or here and using an express card RS232 adapter. It will function like the real thing.
According to this review on Amazon, "Most serial adapters use a PCI-USB-SERIAL interface. If you have older software that requires a true serial port, this card will provide the capability."
So it looks like this is your best bet. It also seems to work well on Linux according to the reviews.
Ops, wrong one I suggested, I meant to suggest the 4-port version I edited the post to change it. Not knowing the equipment OP will be using I went with highest compatibility and native ports are also more stable. Virtual ports may be prone to switching port numbers upon reboot.
I couldn't even find the product brand of the one you suggested. Using a generic product for work onboard a ship doesn't sound like a reliable solution to me. No offense but I was in the Navy and sea spray and salt gets everywhere on a small ship (still realizing I have no idea of OPs application). Cheap electronics and connectors quickly corrode and get buildup that reduces connectivity and reliability.
OP bring spares cards and cables as well as a brass wire brush, alcohol wipes, and dielectric grease. OP could be perfectly fine with cheaper solutions and it could work for a long time, but I tend to side with caution when replacement parts won't be easily accessible.
Here is a cheap PCIe 4 port solution for only $27. http://www.amazon.com/dp/B002TLT95K/
You've got yourself a joystick with a serial port.Edit: Atari joystick port
No idea on whether it's remotely possible to get this working on anything other than the intended consoles.
~~You'd need an adapter
of some kind to get it working with most modern motherboards, but good luck finding compatible drivers! Never know, though.~~
Crazy, I've the (2) listed adapters in route. The cable won't do me anything as the R720xd doesn't have a m.2 port. As for the 'Not enough power', what I've found is that the 4TB card utilized ~30w combined when the card is fully saturated w/read & writes exceeding the 25w allotment by the x4 interface. The card that you've listed that uses external power solidifies the power. If we were using the 2TB u.2 drives, we would be able to power just off of the PCIE bus.
​
With my R720xd, it has a 2x2.5" sata/sas backplane that I'll most likely be tapping into, if the other card (x16) does NOT provide enough power.
https://www.amazon.com/gp/product/B072JK2XLC/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
This is the card I originally ordered, it worked right out of the box, no problems, then I fully loaded the NVME by moving a ton over from my existing datastore, and the drive dropped offline. I ordered the Sintech over the weekend, but have yet to figure out exactly how I'm going to get the 3.3v & 12v electrical rails to feed the card, if not TAP into the existing backplane. The other card (x16) will be here Wednesday, however I'm not due back to the datacenter location until next week where my equipment is located at. I've reached out to Syba USA in regards to the x16 adapter to verify is with the x16 PCIE adapter will provide sufficient power as what's put out by the x16 slot. After confusion with the Tier1's support, the guy said he'll pass my request on over to one of their engineers to clear it up. I'm just hoping that the x16 card will solidify my problem, and hopefully provide me with the power needed.
​
What are your thoughts?
I've had good luck with these. http://www.amazon.ca/StarTech-com-ICUSB2321F-1-Port-Adapter-Retention/dp/B004ZMYTYC/ref=sr_1_4?ie=UTF8&qid=1450230167&sr=8-4&keywords=startech+rs232
Being a ham radio operator most of my radios still need to be programmed over RS232 and never had an issue with these ones. Cheapo prolific based ones never seemed to be reliable.
https://www.amazon.com/StarTech-com-USB-Serial-Adapter-Powered/dp/B004ZMYTYC
There are 2 different things, passthrough an entire usb controller, or a single device, sounds like you want a single device. This link has nice screenshots of exactly what to click: http://www.vbrain.info/2014/07/29/how-to-add-an-esxi-connected-usb-device-to-a-vm/
With older mobos, booting actually may be slower since it has to load an option ROM that contains the drivers for NVMe PCIe/M.2 drives, whereas it "knows" how to talk SATA just from the main BIOS. In some cases it may not be supported at all. Sorry, not entirely sure there, Z87 is a ways back.
NVMe will be a lot faster. But it comes down to what you are using it for. Heavy photo/video editing, etc - for sure. Steam drive usage, probably not, the 850 Evo is still a really fast SSD. But maybe in some games that do really heavy loading, FO4 comes to mind.
You can either buy a PCIe SSD, which are kind of expensive, or now you can also get M.2 to PCIe adapters and just plug a consumer M.2 drive into it. Remember, M.2 is just an interface to break out 4 PCIe channels, so the adapters here basically just wire M.2 into a normal PCIe slot instead (or connect to a SATA cable that you plug into your motherboard, for SATA M.2 devices). It's basically just wiring on a card, super simple, no drivers or anything like that (so it will come down to your motherboard for boot support/op-roms/etc).
Yes, this uses a U.2/SFF-8639 connector (hence the ".2" - goes over 4x PCIe 3.0 at up to 24 Gbps), and has the eMLC NAND type. See page 3 of the datasheet for more information. Proper use of this drive for consumers would require a U.2 (SFF-8639) to M.2/PCIe adapter like this one. But given the inconsistent listing I'm guessing this got messed up with a portable USB3.0 HDD instead. Specifically, the 2TB model.
Solid drives and good price. GLWS!
For those wondering, they will not plug into your SATA or m.2 ports. Unless you have a mobo with a u.2 slot (which you probably don't) you can use this to install them: https://www.amazon.com/StarTech-com-U-2-PCIe-Adapter-PEX4SFF8639/dp/B072JK2XLC
It has a single, hardwired (or soldered) port. Here is the card im using.
i have a little bit of a 'manual' for this board, so to speak, but it doesnt have much information. From what i can read on the motherboard, it goes back and forth on the rows.
2 | 4 | 6 | 8 | 10
-|-|-|-|--
1 | 3 | 5 | 7 | 9
like that.
I'm thinking of getting this.
I don't plan on using a SATA M.2 drive; I'd rather just get a 2.5'' one instead since I have more space in my case for that.
Thank you for the recommendation though!
i bought one of these https://www.newegg.com/Product/Product.aspx?Item=N82E16817332021 some time ago, included a multiport esata external port. after readed seemed if mobo included a esata port, that it did not do the port multiplier stuff. above included card with this chipset, https://www.monoprice.com/product?p_id=2530
so like this https://www.amazon.com/StarTech-com-Express-Controller-Adapter-PEXESATA2/dp/B000ZLRGKQ
no idea who made the card, it was not branded
may be better out there, but i know i was able to read/write to all 5 drives at the same time
This is the same thing
M.2 SATA / SATA 3 port just uses a chipset's storage link , you can't make links out of nothing the link is either going to be in a SATA 3 form factor or in a M.2 SATA form factor , some links get shared so you see a port disabled if M.2 is used and the opposite if you used that same port it will disable M.2 port .
Your only other chance is using a PCI M.2 card but it is the same , you still need a sata link to use it .
Having heard good things I bought one of these FTDI ones that has COM Retention: http://www.amazon.com/gp/product/B004ZMYTYC/ (It comes in today, but the reviews are solid)
CPU | Intel Core i7-7700K 4.2GHz Quad-Core Processor | $348.89 @ B&H
CPU Cooler | Noctua NH-D15 82.5 CFM CPU Cooler | $85.90 @ Amazon
Motherboard | Gigabyte GA-Z270X-UD5 ATX LGA1151 Motherboard | $205.91 @ Newegg
Memory | G.Skill TridentZ Series 32GB (2 x 16GB) DDR4-3200 Memory | $274.99 @ Newegg
Storage | Samsung 960 Evo 250GB M.2-2280 Solid State Drive | $129.99 @ B&H
Power Supply | EVGA SuperNOVA G3 650W 80+ Gold Certified Fully-Modular ATX Power Supply | $89.99 @ B&H
| Prices include shipping, taxes, rebates, and discounts |
| Total | $1135.67
| Generated by PCPartPicker 2017-02-13 18:29 EST-0500 |
If I wanted a machine to brute-force anything utilizing 4 cores or less this would be it. The only thing missing for your needs is the serial port, but an adapter only costs $30 and takes a single PCI-E slot.
https://www.amazon.com/StarTech-com-Native-Express-Adapter-PEX2S952/dp/B001H3KG6W
Be warned: Most of these adapters only emulate the LPT protocol (old printers) and will NOT work with one of these. Get a PCI or PCI-E addin card if you do not have an old computer with a parallel port. I recommend these
I have ordered this converter , hopefully the trackballs work with it
​
https://www.amazon.co.uk/StarTech-com-USB-Serial-Adapter-Powered/dp/B004ZMYTYC/ref=sr_1_5?ie=UTF8&qid=1537464492&sr=8-5&keywords=db9+serial+to+usb
You could mount a serial port card in the computer.
https://smile.amazon.com/StarTech-com-Native-Express-Adapter-PEX2S952/dp/B001H3KG6W
It didn't come with one but if i bought this: https://www.amazon.de/Scythe-SCAM4-1000A-Mounting-System-AM4/dp/B06XW2W9TZ/ref=sr_1_fkmr1_1?__mk_nl_NL=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=scytche+mugen+4+am4+befestigung&qid=1567001570&s=gateway&sr=8-1-fkmr1 i would be able to use the mugen 4 right?
I believe the old sidewinders are actually serial interfaces. There are Serial to USB adapters online for very cheap.
At my last gig, we had a business unit that needed these things, and we handed out these after we started issuing new laptops that didn't have serial ports oboard: https://www.amazon.com/StarTech-com-USB-Serial-Adapter-Powered/dp/B004ZMYTYC/ref=sr_1_2_sspa?ie=UTF8&qid=1522345839&sr=8-2-spons&keywords=startech+usb+to+rs232&psc=1
Gets my recommendation. FTDI chipset and it's StarTech...nuff said:
http://www.amazon.com/StarTech-com-Serial-Adapter-Retention-ICUSB2321F/dp/B004ZMYTYC
So it seems like you've indicated 2 things:
1.) Everything works fine on Ethernet (wired). So this would seem to indicate it's a Wi-Fi only problem.
2.) Other Wi-Fi devices do not have this problem,.. only your Desktop.
So that would lead me to suspect that the problem lies in whatever Wi-Fi adapter/dongle your Desktop is using. I would try updating the Drivers or just flat out replacing it. If you're using some kind of cheap USB WiFi dongle,. I always recommend ditching those and using an internal adapter (if possible).
Something like this: https://www.amazon.com/Intel-N4G85AT-Wireless-Network-Adapter/dp/B0150O7NK0/ref=sr_1_23?srs=2529650011&ie=UTF8&qid=1487528289&sr=8-23&keywords=intel+pci+card+wifi
or this: https://www.amazon.com/Intel-Wireless-AC-Bluetooth-Adapter-7260HMWDTX1/dp/B00EKQN2KK/ref=sr_1_fkmr0_1?ie=UTF8&qid=1487528379&sr=8-1-fkmr0&keywords=intel+pci+card+wifi+external+antenna
Could you not use a PCIE card like this?
https://www.amazon.com/StarTech-com-PEX8S952-Native-Express-Adapter/dp/B001VSR9TK
Finding a hardware vendor that will ship a PC with that many ports onboard is going to be tricky. They will either be a bit shitty, or specialised and far too expensive (or both) I would imagine.