Bitcoin accepted at checkout | Ships from Montreal, QC, Canada | Expert support since 2016
$16.99 CAD
A retaining ring that holds filter media over a 120 mm intake fan. Dust is what kills mining hardware slowly — it insulates heatsinks, clogs fins, and turns a machine that was running fine into one that throttles for no visible reason.
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A retaining ring that holds filter media over a 120 mm intake fan. Dust is what kills mining hardware slowly — it insulates heatsinks, clogs fins, and turns a machine that was running fine into one that throttles for no visible reason.
Fits the standard 120 mm fan face and mounts on the intake side. It takes flat filter media cut to size — furnace filter material, coarse foam, or whatever your environment calls for. Nothing proprietary; you cut it from a sheet.
Measure before you order. Fit dimensions in this line are derived from published fan and chassis geometry and are not yet validated against measured production hardware. Check your flange size and the clearance around your machine against the footprint in the specifications below. If something does not fit, tell us — that is how the next revision gets better.
Fit it to the intake fans, not the exhaust. Cut media to the ring, seat it, and put cleaning on a schedule. In a shop or garage, that might be monthly. In a clean room, quarterly. In a barn, more often than you expect.
A dusty hashboard runs hotter than a clean one at the same airflow, and hot chips age faster and hash worse. Filtering the intake moves the maintenance from the inside of the machine — where cleaning it means opening it and blowing it out — to a ring on the outside that takes ten seconds. It is the cheapest life-extension available for hardware running in real environments.
| Fits | Any standard 120 mm fan |
|---|---|
| Intake | 120 mm fan face |
| Outlet | Filtered intake |
| Footprint | 138 × 138 × 28 mm |
| Material | PETG |
| Construction | Single continuous body — no assembly, no fasteners, no glued joints |
| Design files | Open source — free to download, use, modify and redistribute |
| SKU | DC-ACC-FILT-120 |
Every shroud D-Central designs is released as an open file. The geometry for this part is free to download from our 3D models download center: use it, modify it, remix it, run it in your own shop, sell what you make from it. There is no licence to buy and no design gated behind a purchase. Shared knowledge is the whole reason this industry has open hardware at all, and we are not going to be the ones who stop passing it on.
This listing is for the finished part: made to order in PETG and shipped from Montreal, Quebec. If you would rather have it in your hands than spend an evening making one, buy it here — that is what pays for the next design in the line. You can also support the open-source work directly through D-Central’s fund page.
See the full D-Central shroud and ducting system for the compatibility matrix and sizing guide.
Whatever suits your environment. Standard furnace filter media is the common choice and easy to cut. Coarser media restricts less but catches less; finer media catches more but chokes faster. In a dirty environment, coarse and frequently changed beats fine and neglected.
Yes, always — and a clogged one hurts a lot. That is the trade. Watch your temperatures after fitting one and set a cleaning interval you will actually keep to. A filter you never change is worse than no filter at all.
Intake, always. Filtering the exhaust achieves nothing except restriction.
| Weight | 60 g |
|---|---|
| Dimensions | 13.8 × 13.8 × 2.8 cm |
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Last reviewed July 31, 2026.
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