Bitcoin accepted at checkout | Ships from Montreal, QC, Canada | Expert support since 2016
$63.99 CAD
The S21 Pro shroud with a full 8-inch outlet. On a machine with two 140 mm fans running hard, this is the version that should be the default and the 6-inch one the exception.
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The S21 Pro shroud with a full 8-inch outlet. On a machine with two 140 mm fans running hard, this is the version that should be the default and the 6-inch one the exception.
Built around the Antminer S21 Pro rear 140 mm fan pair. Not for the S21 XP, and not for the standard S21 with its 120 mm fans. Output takes standard 8-inch duct and mates directly 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.
Fit over the fan pair, clamp 8-inch duct, route it out. Use this version for any run with real length, more than a bend or two, an inline booster, or a shared trunk — which describes most installs on a machine this size.
Two 140 mm fans move a serious volume of air, and necking that into a 6-inch duct wastes some of what you are paying for in electricity every hour. The extra cross-section costs a little space and nothing else. On hardware in this class, generous ducting is not a luxury — it is the difference between the shroud helping and the shroud becoming the restriction.
| Fits | Antminer S21 Pro — rear 140 mm fan pair. NOT the S21 XP. |
|---|---|
| Intake | 2 × 140 mm fans |
| Outlet | 8″ duct collar |
| Footprint | 296 × 208 × 175 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-SHR-S21P-D140-8 |
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.
On an S21 Pro, in most installs, yes. Take the 6-inch version only if your duct goes almost straight out a wall a short distance away.
No. The XP is a different arrangement and this part does not cover it.
Yes — run 8-inch for the trunk and use an 8″ to 6″ reducer at the penetration if that is the hole you have. Reducing at the end costs far less than reducing at the start.
| Weight | 370 g |
|---|---|
| Dimensions | 29.6 × 20.8 × 17.5 cm |
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