Antminer S21 Pro / S21 Pro+ / S21 XP / S21+ Silver Industrial Silencer – Pure Copper AC
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Antminer S21 Pro / S21 Pro+ / S21 XP / S21+ Silver Industrial Silencer – Pure Copper AC for 140mm Square 4pin Chassis
Quiet the air-cooled S21 family's high-output variants — S21 Pro, S21 Pro+, S21 XP and S21+ — with the heavy industrial pick. Silver metal housing, full pure-copper AC motor, 1750-2000 CFM airflow ceiling. All four variants share the same chassis architecture (4× 140mm fans on square 4pin connectors) so this single silencer covers all of them. Bundle includes 4 × square 4pin fan simulators.
Why the Silver Industrial Series for the S21 Pro Family
The S21 Pro family pushes more hash and more thermal load than the base S21. The Silver Industrial's 1750-2000 CFM airflow and robust pure-copper AC motor are the recommended floor — anything less risks thermal throttling on warm days. Robust metal housing for permanent install, longest service life in the line. Compact alternative? See our Antminer S21 Pro Family Black Mini Silencer.
What's in the Box
- 1 × Silver Industrial blower silencer (200W/300W, 1750-2000 CFM, pure-copper AC motor)
- Power cable matched to your selected plug (US / EU / UK / CN)
- 4 × square 4pin fan simulators for your control board
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. Duct the silencer's 150mm outlet to the chassis exhaust using your own flexible coupler. Power up, monitor hashboard temperatures for the first hour. Verify duct sealing tight — S21 Pro family thermal margin is tighter than base S21.
Antminer S21 Pro Family Silver Industrial Silencer — Technical Specifications
| Parameter | Value |
|---|---|
| Series | Silver Industrial — Metal Housing |
| Motor | Full pure-copper AC capacitor |
| Speed Control | Fixed 1150 RPM |
| Air Volume | 1750 CFM / 2000 CFM |
| Power | 200W / 300W |
| Voltage | 220V AC, 50Hz |
| Outlet | 150mm flexible duct (your own coupler) |
| 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 Fan Simulators | 4 × square 4pin simulators |
| Power Cable | US / EU / UK / CN — select at order |
| Condition | New |
Related Antminer Silencers
- Antminer S21 Pro Family Black Mini Silencer (Compact + Exhaust Adapter)
- Antminer S21 / T21 Silver Industrial Silencer (120mm fans)
- 300W Universal Premium Silver Industrial Silencer (2000 CFM)
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).
