#30 in Internal USB port cards

Reddit mentions of [Discontinued] GekkoScience 2PAC (Dual BM1384) USB Stickminer

Sentiment score: 3
Reddit mentions: 5

We found 5 Reddit mentions of [Discontinued] GekkoScience 2PAC (Dual BM1384) USB Stickminer. Here are the top ones.

[Discontinued] GekkoScience 2PAC (Dual BM1384) USB Stickminer
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15gh/s mining speed(Higher speed requires usb port above spec) 32-.35 watts per gh. Completely silent operation Bitmain BM1384 chips[Discontinued by the Manufacturer] Replaced by GekkoScience NEWPAC (Dual BM1387) USB Stickminer
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Found 5 comments on [Discontinued] GekkoScience 2PAC (Dual BM1384) USB Stickminer:

u/celegans25 · 6 pointsr/FPGA

This site has a decent variety of beginner FPGA tutorials that would probably be interesting: https://www.fpga4fun.com

I would absolutely not recommend trying to use a bitcoin miner on an FPGA for a couple of reasons:

  1. It's going to be very difficult for a beginner (or even an intermediate) hardware designer to be able to jump in and understand how this whole thing works and try and change things in it. If you actually want to learn how to design hardware on an FPGA, it's much better to start slow and learn the fundamentals of design than to jump in the deep end.

  2. Mining bitcoin on an FPGA is not competitive anymore, especially on a small FPGA like this one. For instance, when I tried it on a DE0-nano (which is a larger and faster FPGA than this one), I got 9-10 MH/s. Compare this to a miner I found on amazon which costs $45 and can get 15GH/s. This miner is on the very low end of bitcoin miners, and yet it gets 1000x the hash rate over my FPGA for a lower price (the DE0 now goes for around $70 I think). Suffice it to say, you have no hope of making money with this device.

  3. The FPGA targeted by the link you posted has several times more LEs than your FPGA, so you will have to port the design to the smaller FPGA. As discussed in point 1, this won't be easy, especially for a beginner.

    In short, I recommend learning FPGAs by starting small and working your way up. And (I know this is going to be hard, but it will help) try to resist the urge to test everything on the device. Unlike writing code on a desktop or even a microcontroller where you can open a debugger, debugging an FPGA is like working with a black box, in that it's really difficult to get a good idea of what's going on inside it. Instead, before your design ever goes on the FPGA, you really should simulate it using something like Icarus Verilog or Verilator or even modelsim to find the bugs in your design, and only when you're sure it will actually work, put it on an FPGA. I recommend checking out zipcpu's blog where he gives examples of how to simulate a design effectively. My life would have been so much easier if someone had told me this when I was first starting.
u/gizram84 · 3 pointsr/Bitcoin

You can get better ones for $70.

These do 15gh/s. OP says he's using Antminer U1s which do 2gh/s.

Still not cost effective. Chances are very slim.

u/bitusher · 1 pointr/BitcoinBeginners

I understand you want to use this simply as a proof of concept for education but the lesson you will be giving others is that cpu mining is neat and possible when it should be discouraged. At minimum you should go on amazon and buy a ASIC USB stick - https://www.amazon.com/GekkoScience-Double-Compac-2-Bitcoin-BM1384x2/dp/B072L5QYT5/ref=sr_1_1?ie=UTF8&qid=1510055060&sr=8-1&keywords=asic+bitcoin+miner

or used s3 asic - https://www.amazon.com/AntMiner-S3-441Gh-0-77W-SHA-256/dp/B00NZDBWKG/ref=sr_1_4?ie=UTF8&qid=1510055060&sr=8-4&keywords=asic+bitcoin+miner

to educate young users with

u/BitcoinAllBot · 1 pointr/BitcoinAll

Here is the post for archival purposes:

Author: Killcraft69

Content:

>So I'm thinking of getting this
I noticed in the reviews a person mention that they couldn't use it because they didn't know how. Is there anything more I would have to do then just plug it in a pc? Is this even a good option? what is the best program for mining