Antminer S21 Pro / S21 Pro+ / S21 XP / S21+ Mini Silencer – Compact Blower (140mm Fans Exhaust Adapter)
Couldn't load pickup availability
Have questions about this product? Our team is here to help — just reach out on WhatsApp.
💬 Contact Us on WhatsAppAbout the Product
Antminer S21 Pro / S21 Pro+ / S21 XP / S21+ Black Mini Silencer – Compact Blower with Dedicated 140mm Exhaust Adapter
Quiet the air-cooled S21 family's high-output variants — S21 Pro, S21 Pro+, S21 XP and S21+ — with the compact home pick. Black plastic housing, motor with stepless speed knob, sized for the 140mm fan chassis. Bundle includes a dedicated 140mm exhaust adapter that mates the Black Mini outlet to the S21 Pro family chassis exhaust — plug-and-play seal. Heavy industrial alternative? See our Antminer S21 Pro Family Silver Industrial Silencer.
Why the Black Mini Series (with caveats for S21 Pro family)
The Black Mini is compact and discreet — ideal for home installs of an S21 Pro / Pro+ / XP / Plus. But these high-output variants push the air-cooled envelope; the Black Mini's 1300 m³/h ceiling holds at moderate ambient but tightens in warm climates or dense rack stacks. The stepless knob (1800-7000 RPM) is your headroom — dial up to the ceiling on hot days. If your install runs warm year-round, the Silver Industrial may be the safer pick.
What's in the Box
- 1 × Black Mini blower silencer (1300 m³/h, stepless 1800-7000 RPM)
- Dedicated exhaust adapter for Antminer S21 Pro / Pro+ / XP / Plus (140mm fan chassis)
- Power cable matched to your selected plug (US / EU / UK / CN)
- 4 × square 4pin fan simulators
Pair with the Right Fan Simulator (if you need additional units)
Install Workflow
Power off, unplug, remove the 4 stock 140mm fans. Plug a square 4pin fan simulator into each control board fan header. Attach the included exhaust adapter to the miner chassis, then mate the Black Mini outlet to the adapter. Power up, set the stepless knob to ~70% on first boot, monitor chip-junction telemetry for the first hour at full hash, trim down for silence only after confirming thermal margin.
Antminer S21 Pro Family Black Mini Silencer — Technical Specifications
| Parameter | Value |
|---|---|
| Series | Black Mini — Compact Plastic Housing |
| Motor | low power |
| Speed Control | Stepless knob, 1800-7000 RPM |
| Air Volume | 1300 m³/h at full speed |
| Power | 300W / 400W |
| Voltage | 220V AC, 50Hz |
| Outlet | 150mm + dedicated 140mm S21 Pro family exhaust adapter |
| Target Miners | Antminer S21 Pro, S21 Pro+, S21 XP, S21+ (air-cooled, 140mm fans) |
| Stock Fan Architecture | 4 × 140×140×38mm, square 4pin connector |
| Included | 4 × square 4pin fan simulators + dedicated exhaust adapter |
| Power Cable | US / EU / UK / CN — select at order |
| Condition | New |
Related Antminer Silencers
- Antminer S21 Pro Family Silver Industrial Silencer (Heavy Industrial — recommended for warm climates)
- Antminer S21 / T21 Black Mini Silencer (120mm fans)
- Gen2 Premium Black Mini Universal Silencer
Order online or contact us at contact@lys-sz.com for fleet pricing.
Worldwide shipping from our Shenzhen warehouse. DDP delivery for USA & EU customers; rest of world ships from China with local customs on delivery.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
