Bitcoin accepted at checkout | Ships from Montreal, QC, Canada | Expert support since 2016
$35.99 CAD
Sometimes the duct cannot leave from the middle. A shelf above, a wall behind, a neighbouring machine, a window that is not where you would have put it — the offset shroud moves the collar off centre so the duct exits where there is actually room for it.
High Demand — Pre-order Now, Ships in 5-10 Business Days
Purchase details
Save 3% when you pay in Bitcoin.
Use the S21 cluster to connect current-generation specs, buying options, chip-level parts, troubleshooting, and repair support.
Sometimes the duct cannot leave from the middle. A shelf above, a wall behind, a neighbouring machine, a window that is not where you would have put it — the offset shroud moves the collar off centre so the duct exits where there is actually room for it.
Same rear 120 mm fan pair intake as the rest of the dual-120 family, covering the Antminer S19 series and standard S21. Not for the S21 Pro or XP. Standard 6-inch output collar, positioned off centre.
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.
Install with the collar oriented toward whichever side has clearance — up toward a high window, down toward a floor-level penetration, or to one side to clear a rack upright. It saves you an elbow, which saves you both space and a pressure drop.
The neatest duct run is the one with the fewest fittings, and every 90-degree elbow you add costs more pressure than people expect. If the offset alone gets you pointed at your exit, you have removed a fitting from the path entirely. Real installs are constrained by architecture, not by symmetry.
| Fits | Antminer S19 series and standard Antminer S21 — rear 120 mm fan pair |
|---|---|
| Intake | 2 × 120 mm fans |
| Outlet | 6″ duct collar, offset from centre |
| Footprint | 250 × 157 × 165 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-OFF-D120-6 |
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.
Yes — the offset direction is whichever way you orient the shroud on the machine. And because the file is open, you can also move the collar wherever you like if none of the four orientations works for your install.
It introduces some asymmetry in the plenum, which in isolation is not ideal. But it very often removes a 90-degree elbow from the duct run, and an elbow costs far more than a slightly off-centre transition. On balance, in a constrained install, the offset usually wins.
Offset when geometry is your constraint. Venturi when airflow is. Clamp-groove, bayonet and threaded when how the duct attaches matters most.
| Weight | 250 g |
|---|---|
| Dimensions | 25 × 15.7 × 16.5 cm |
Only logged in customers who have purchased this product may leave a review.
When Bitmain announced the Antminer S21, the Bitcoin mining world took notice. After years of incremental improvements across the S19 lineup, the S21 represents a genuine generational leap…
In the rapidly evolving world of cryptocurrency, Bitcoin mining has emerged as a cornerstone activity for enthusiasts and investors alike.
Industrial mining hardware was never built for your house. 3D printing closes the gap — shrouds, enclosures, stands, and repairs. Here is what to print, what to buy, and where the limits are.
We use cookies to improve your experience and analyze site traffic. Privacy Policy
Choose which cookies you allow. Essential cookies are required for the site to function and cannot be disabled.
Required for basic site functionality, shopping cart, and security. Always active.
Help us understand how visitors use our site so we can improve your experience. Includes Google Analytics.
Used to deliver relevant ads and track campaign performance across platforms.
Reviews
There are no reviews yet.