Bitcoin accepted at checkout | Ships from Montreal, QC, Canada | Expert support since 2016
$73.99 CAD
The top of the silencer line: the tuned quarter-wave side branch of the v2, with the 8-inch outlet that keeps the pressure penalty sane on a serious duct run. If you are going to do this properly on an S19 or standard S21, this is the part.
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The top of the silencer line: the tuned quarter-wave side branch of the v2, with the 8-inch outlet that keeps the pressure penalty sane on a serious duct run. If you are going to do this properly on an S19 or standard S21, this is the part.
Rear 120 mm fan pair on the Antminer S19 series and standard Antminer S21. Not for the S21 Pro or XP. Full 8-inch outlet collar, compatible with 8-inch inline fans.
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.
For installs that combine an acoustic requirement with a real duct run — long routing, multiple bends, an inline booster, or a shared trunk. It is the largest part in the line; measure the space behind the machine carefully, including anything above it.
Every element in an exhaust path costs pressure, and a chamber plus a long duct plus elbows adds up fast. The 8-inch outlet is what makes the tuned chamber affordable in airflow terms. On the acoustics: the λ/4 branch targets the tonal blade-pass component and the idealised model predicts a notch around 750 Hz. That is design intent from a model, not a measurement. We have not acoustically tested this part and we publish no decibel figures.
| Fits | Antminer S19 series and standard Antminer S21 — rear 120 mm fan pair |
|---|---|
| Intake | 2 × 120 mm fans |
| Outlet | 8″ duct collar |
| Footprint | 250 × 245 × 228 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-SIL-D120-8-V2 |
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.
It is the largest single body in the line and it does the most jobs at once — merge two fans, run a reactive chamber, run a tuned side branch, and terminate at full 8-inch. Whether it is worth it over the v1 is a question we cannot answer with measurements yet, which is exactly why we are telling you so instead of implying otherwise.
Check the footprint in the specifications table against your actual clearance, including height. This is the biggest part we make and it will not fit every rack.
Yes. The file is free at our 3D models download center, like every shroud we design. Buy the finished part if you would rather not tie up a machine for the hours a body this size takes.
| Weight | 465 g |
|---|---|
| Dimensions | 25 × 24.5 × 22.8 cm |
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