Bitcoin accepted at checkout | Ships from Montreal, QC, Canada | Expert support since 2016
$41.99 CAD
The dual-120 Antminer shroud with the outlet opened to 8 inches. Two fans at full power genuinely can use the extra cross-section, and this is the version to reach for whenever the duct run is doing more than going straight through the nearest wall.
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The dual-120 Antminer shroud with the outlet opened to 8 inches. Two fans at full power genuinely can use the extra cross-section, and this is the version to reach for whenever the duct run is doing more than going straight through the nearest wall.
Designed around the rear 120 mm fan pair on the Antminer S19 series and standard Antminer S21. Not for the S21 Pro (140 mm pair) or the S21 XP. Output takes standard 8-inch flexible or rigid duct and mates 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.
Use it for long runs, runs with multiple elbows, shared trunk lines, and any install where an 8-inch inline booster is doing part of the work. Both fans still merge inside one shaped plenum before the collar — only the outlet size changes.
Two 120 mm fans pushing into a 6-inch duct with three bends in it is how people end up disappointed with ducting. Cross-section is the cheapest thing you can give a fan, and going 8-inch at the shroud means the restriction budget gets spent on the run you actually need rather than on the transition.
| Fits | Antminer S19 series and standard Antminer S21 — rear 120 mm fan pair |
|---|---|
| Intake | 2 × 120 mm fans |
| Outlet | 8″ duct collar |
| Footprint | 250 × 208 × 170 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-D120-8 |
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.
If your duct goes straight out a wall two metres away, no — take the 6-inch version. If it climbs, turns, runs a long way, or joins other machines, yes. The cost of oversizing is space; the cost of undersizing is airflow you paid for in electricity.
No. The S21 Pro uses a 140 mm fan pair — see the S21 Pro dual 140 mm to 8″ shroud. This part is for the S19 series and the standard S21.
You can, with a collector, but be careful: whichever machine has the weaker fans will get backpressured by the stronger one. Our 8″ to dual 6″ Y-splitter can be run in reverse as a collector if you want to try it, but a duct per machine is the layout that behaves predictably.
| Weight | 285 g |
|---|---|
| Dimensions | 25 × 20.8 × 17 cm |
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