Antminer S21 Hyd 335 TH/s
Bitmain hydro-cooled SHA-256 miner, 335 TH/s at 16.0 J/TH. Needs a liquid loop, but triples the density per rack slot.
- Hashrate
- 335 TH/s
- Power
- 5360 W
- Efficiency
- 16.0 J/TH
- PriceAsk for price
- Stock6 pcs
- Dispatch72h
- Warranty180 days
Unit prices follow the batch and the exchange rate, so we quote per order instead of publishing a fixed figure. A quote states the unit price, the dispatch window and how long it holds.
Overview
Hydro cooling is not a drop-in upgrade: the machine ships without fans and without a radiator, and it will not run until you have a loop with a pump and a heat rejection path. What you get in exchange is 335 TH/s in a chassis two thirds the height of an air-cooled unit, and a noise level low enough to sit inside a building. Only worth it if you already have liquid infrastructure or are building a site from scratch.
What you get
- Requires a liquid cooling loop: plate, pump, dry cooler or chiller
- 335 TH/s in a 2U-class footprint, roughly 1.7x the density of an air-cooled S21
- No fans, so noise drops to roughly 50 dB at the rack
Specifications
- Brand
- Bitmain
- Cooling
- Hydro cooled
- Condition
- New
- Noise level
- 50 dB
- Dimensions
- 410 x 196 x 209 mm
- Weight
- 13.5 kg
- Release year
- 2024
SKU ASIC-S21HYD
Other units in stock
View the full section
Antminer S21 Pro 234 TH/s
S21 Pro+
- Hashrate
- 234 TH/s
- Power
- 3510 W
- Efficiency
- 15.0 J/TH

Antminer S21 XP 270 TH/s
S21 XP 270T
- Hashrate
- 270 TH/s
- Power
- 3645 W
- Efficiency
- 13.5 J/TH

Antminer S21 Pro+ 245T
S21 Pro+
- Hashrate
- 245 TH/s
- Power
- 3675 W
- Efficiency
- 15 J/TH
Hashrate and power figures are manufacturer ratings and vary with firmware, ambient temperature and unit condition. Profit estimates depend on coin price, network difficulty and electricity cost, all of which move. Nothing on this site is investment advice or a guarantee of return.