Description
The Antminer S21 Imm (215Th) from Bitmain mines Bitcoin on the SHA-256 algorithm with a maximum hashrate of 215 Th/s for a power consumption of 3440W, an efficiency of 16.0 J/TH.
This is an immersion miner. It has no fans and runs fully submerged in dielectric coolant, so it is near-silent, has no dust ingress and no moving parts to fail. Heat goes straight into the fluid, which makes it well suited to heat recovery and to sites where an air-cooled room simply is not practical.
The S21 Imm also carries a switchable high-performance mode rated at up to 301 Th/s for 5,569W (18.5 J/TH), so the same hardware can be pushed harder where you have the cooling headroom and the power price to justify it.
Please Note: This machine requires an immersion tank and dielectric coolant, and a 380-415V AC 3-phase supply. It cannot be run in open air. Please contact us if you are unsure whether your setup is suitable.
What’s In The Box?
- 1 x NEW Bitmain Antminer S21 Imm 215T Miner
- 1 x Bitmain APW11 (1216-1a) Power Supply
Technical Specifications:
Manufacturer: Bitmain
Model: Antminer S21 Imm. (215Th)
Algorithm: SHA-256
Mineable coins: Bitcoin (BTC), Bitcoin Cash (BCH) and other SHA-256 coins
Hashrate: 215 Th/s ±3%
Power: 3440W ±5%
Efficiency: 16.0 J/TH ±5%
High-performance mode: up to 301 Th/s at 5,569W (18.5 J/TH)
Cooling: Single-phase immersion, fanless – tank and dielectric coolant required
Coolant inlet temperature: 30 – 55 °C
Coolant flow: approx. 1 m³/h
Size: 293 x 236 x 364 mm
Weight: 17.15 Kg net
Voltage: 380 – 415V AC
Interface: Ethernet (RJ45)
First release: Q4 2024
Warranty: 12 Month RTB
