#16,897 in Electronics
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Reddit mentions of Noctua NF-A4x10 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (40x10mm, Brown)
Sentiment score: 2
Reddit mentions: 3
We found 3 Reddit mentions of Noctua NF-A4x10 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (40x10mm, Brown). Here are the top ones.
or
- Premium quiet fan, 40x40x10 mm, 5V, 4-pin PWM, max. 5000 RPM, max. 19.6 dB(A), >150,000 h MTTF
- Award-winning 40x10mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
- 5V 4-pin PWM version (5000rpm maximum speed) with polarity protection for 5V applications with PWM speed control
- USB power adaptor cable allows the fan to run on devices with USB host ports, power banks or USB power supplies such as those used by smartphones
- Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers
Features:
Specs:
| Color | Brown |
| Height | 0.3937 Inches |
| Length | 1.5748 Inches |
| Size | 40x40x10mm |
| Weight | 0.3968320716 Pounds |
| Width | 1.5748 Inches |
Details
So a member of the Stress Level Zero team shared a now-pretty-popular image of his frunk fan mod using 40 mm computer fans to ventilate the Headset. I was inspired, so I went on a hunt for the quietest efficient fans I could fine, and that search led me to Noctua's 5V 40mm computer fans. They're listed at only 19.6 dBA (I'd say they're quieter than that - more like having a ceiling fan on in the room), and yet the can still move plenty of air at 5,000 rpm.
The original mod had the fans blowing cool, external air into the headset. I originally tried this and it left me very disappointed as I couldn't sense any air moving. The only time I did feel air moving was when I angled the fans to blow upward into the vents in the upper portion of the frunk, and it was hot air (which would be a disservice to the wearer, obviously). The only pro was that it cooled off the components.
So I simply flipped the fans over and it made a world of difference. There's a slight gap between the HMD and the face gasket at the nose (which does cause light bleed but with the lights off, who cares?), and with the fans sucking hot air out of the headset, a draft is created between the wearer and the inside of the headset, bringing in cool air around the nose and ventilating the inside of the headset. It also does a stellar job of keeping the components cool I've found. I spent about 4 hours in it at one time and not once did I get warm inside of it.
What I used:
Black Duct Tape
2x 40mm 5V Noctua Fans at 19.6 dBA (they're 4-pin but they include 4-pin F to USB M adapters with each fan)
4-pin Splitter Cable to join the two fans
What I would probably use instead:
A better mounting system than duct tape, for one
The same fans
This all in one 2 3/4-pin to USB splitter/adapter
This USB toggle switch to turn off the fans
https://www.thingiverse.com/thing:3735353
With
NOCTUA NF-A4x10 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (40x10mm, Brown) https://www.amazon.com/dp/B07DXS86G7/ref=cm_sw_r_cp_api_i_HGCTDb4SM7N8R
Hello again Beastly4k, very nice temps you're getting there.
Just in case anyone finds it useful, here's a pic of the Noctua fan mod I mentioned on your other thread. I used the mount posted here, had it 3d printed by one of the services linked to from there. The print job was actually really shoddy and started to fall apart very quickly but a bit of electrical tape fixed that.
Couple of different angles of the mount. The Noctua 40mm fan comes with a USB adapter. The cable was a little long hence the splicing job you can see.