Bitcoin accepted at checkout | Ships from Montreal, QC, Canada | Expert support since 2016
$41.99 CAD
Wide-base 260 mm alternate of our dual 120 mm to 8-inch exhaust shroud for the Antminer S19 and standard S21 — the duct size for long runs and shared plenums.
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This is the wide-base alternate of our dual-120 to 8-inch shroud. It captures both 120 mm exhaust fans of an Antminer S19 or standard S21 and converges them into one 8-inch flex duct — the size to reach for on long duct runs and shared plenums, where you want the duct to stop being the restriction.
What makes it the “wide base” version is the mounting plate: 260 mm across instead of the 250 mm of the standard shroud. That broader plate is meant for base and rack mounting — situations where you want a wider footprint against the machine face rather than a flush fan-panel bolt-on. The dual 120 mm fan capture, the 105 mm screw pattern and the flex-over 8-inch collar are the same as the rest of the dual-120 family, so ducting and accessories interchange.
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 clearances against the footprint below. If something does not fit, tell us — that is how the next revision gets better.
Mount the shroud over the two exhaust fans so the flange slots line up with the fan screw holes, and fasten it with M4 screws. Washers are required on the fan flange: the holes are 6.40 × 5.00 mm slots, so use a 9 mm or larger flat washer under each M4 screw head, or reuse the miner’s own large-head fan screws. Then slip your 8-inch flex duct over the collar — the duct goes over the outside of the collar and clamps down on the sealing land behind the retention bead. From there, route the duct to a window, wall port or plenum — wherever the heat is supposed to go.
| Fits | Antminer S19 series and standard S21; any dual 120 mm fan face |
|---|---|
| Intake | Dual 120 mm fan capture — 120.0 mm fan pitch / 105 mm screw pattern |
| Duct size | 8-inch flex duct (slips over the collar) |
| Footprint (mm) | 260 × 203.2 × 165 |
| Material | PETG, single-piece print |
| Fulfilment | Made to order in Montreal, Quebec |
Like every part in the shroud line, this model is open source under CC BY-SA 4.0. The print files are free to download at /3d-models/, and anyone may print, modify or sell them — that is the point of the licence. Buying a finished part from us supports the design work that keeps the whole line improving; so does the fund.
See the full D-Central shroud and ducting system.
The mounting base. This wide-base alternate carries a broader 260 mm base plate where the standard version uses 250 mm — the fan interface, screw pattern and duct sizes are the same. Pick this one when you want a wider footprint against the machine face, for base or rack mounting. The standard version is the dual 120 mm to 8-inch shroud.
It is modelled for the dual 120 mm fan face of the Antminer S19 series and standard S21: 120.0 mm fan pitch on a 105 mm screw pattern. Any machine with that fan face is a candidate. None of the interface dimensions have been caliper-verified against production hardware yet, so measure your fan panel and clearances before ordering — and note that Washers are required on the fan flange: the holes are 6.40 × 5.00 mm slots, so use a 9 mm or larger flat washer under each M4 screw head, or reuse the miner’s own large-head fan screws.
Reach for 8-inch on long duct runs and shared plenums — the situations where you want the duct itself to stop being the restriction in the system. For a short, direct run to a window or wall port, the 6-inch wide-base shroud is the more compact choice. We publish no airflow figures for either; no flow bench has been run.
| Weight | 260 g |
|---|---|
| Dimensions | 26 × 20.32 × 16.5 cm |
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