The intake shroud for your Antminer S19 / S21 mounts on the intake side of your miner. For duct connection with stock fans or as an adapter for an external inline fan.
At a Glance
Contents: 1× intake shroud, 2× PSU adapter (short + long), 2× screw set (8 short + 8 long screws), 1× hose clamp
Size options: 8 inch (200mm) or 10 inch (250mm)
PSU distance: 30mm, 60mm or 90mm selectable
Use case 1: With stock fans — connect duct hose, supply fresh air
Use case 2: Without fans — plug inline fan directly into the opening
With Stock Fans
The fans stay in the miner. The shroud with the long PSU adapter mounts over the fan and supplies fresh air via duct hose. Ideal when you want to draw intake air from outside or another room.
With Inline Fan
The stock fans are removed. The short PSU adapter is mounted and a quiet inline fan plugs directly into the opening. Significantly less noise with equal or better cooling performance. Fan spoofer only needed with stock firmware (Bitmain OS) — not required with Braiins OS or other alternative firmware.
8 or 10 Inch?
10 inch offers less air resistance and is generally the quieter option: Whether stock fans or inline fan — the fans have less backpressure to work against and run quieter as a result. Ideal for longer duct runs or bends. 8 inch is sufficient for short, straight runs and is more compact.
Which PSU Distance Do I Need?
The PSU adapter bridges the gap between the hashboard fan and the power supply. This distance varies by miner model:
30mm — S19 Pro
60mm — S21, S19, S19k Pro, S19 XP, S19j, S19j Pro, S19a, S19a Pro (most common)
90mm — older S19 models (measure if unsure)
Not sure? Measure the depth difference between the PSU housing and the hashboard housing on the front side of your miner. Or contact us — we'll help you choose the right variant.
Compatible Miners
Fits all Antminer models with 2× 120mm fans: S21, T21, S19, S19 Pro, S19k Pro, S19 XP, S19j, S19j Pro, S19a, S19a Pro.
Not compatible with S21+, S21 Pro, S21 XP (different fan size, 140mm).
Material and Quality
Made from PETG — heat-resistant, durable, and printed as solid material. Designed and manufactured in Germany.