Bitmain Antminer S21 Hyd 335 TH/s Hydro-Cooled ASIC Miner

The Bitmain Antminer S21 Hyd delivers 335 TH/s at 16 J/TH efficiency, Bitmain’s entry point into hydro-cooled mining. It offers quieter operation than air-cooled units and a solid step up in density for operators already running a hydro or immersion setup. This unit is used but like new, showing no visible wear and bench-tested in our Portland warehouse to confirm full hashrate and hashboard condition before listing. Original power supply unit included.

This is a hydro-cooled unit and requires a compatible water cooling loop or immersion setup to operate. It is not a drop-in replacement for an air-cooled miner.

Specifications:

• Hashrate: 335 TH/s
• Power draw: approximately 5,360W
• Efficiency: 16.0 J/TH
• Algorithm: SHA-256
• Interface: Ethernet
• Cooling: Hydro (water-cooled)
• Noise level: 50dB
• Operating temperature: 5°C to 45°C
• Dimensions: 410 x 170 x 209mm
• Condition: Used, like new, tested and graded, PSU included

Ships worldwide via DHL Express (1 to 3 business days) or FedEx Ground for domestic US orders. Backed by a 6-month warranty and a 90-day return window.