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Rectangular silver metal mining unit with front grille and rear ports

Antminer

Antminer S21 Pro+ 234T mining hardware

SKU CH-4GVQ-0HWGE MPN S21

SHA-256 ASIC miner delivering 234 Th/s at 3510 W with 15 J/TH efficiency, air-cooled and Ethernet-connected

  • Part#S21 Pro+ 234T
  • TypeMining Machine/Miner
  • Crypto AlgorithmSHA256
  • Compatible CurrencyBitcoin (BTC)
  • Mining HardwareASIC
  • Hashrate234 Th/s
  • 234 Th/s hashrate for high Bitcoin mining throughput
  • 15 J/TH power efficiency reduces electricity cost per terahash
  • 3510 W power draw at 220–277 V AC input
  • 76 dBA noise level at 30 °C ambient temperature
  • Operates from –20 °C to 45 °C with 10–90 % humidity tolerance

SHA256 ASIC Miner for Bitcoin

The Antminer S21 Pro+ 234T is an air-cooled ASIC mining machine built for the SHA256 algorithm. It delivers a hashrate of 234 Th/s while drawing 3510 W at the wall, yielding a power efficiency of 15 J/TH. The unit operates on 220–277 V AC input at 50–60 Hz with a maximum current draw of 20 A and requires a 4000 W power supply. It connects to the network via RJ45 Ethernet 10/100M.

Build Integration and Requirements

The miner measures 450×219×293 mm and weighs 18.5 kg, fitting standard rack or shelf deployments. It produces 76 dBA at 30 °C, so acoustic planning is necessary for indoor sites. Operating temperatures range from –20 °C to 45 °C with 10–90 % relative humidity, and it is rated for altitudes up to 2000 m. A 4000 W PSU and a 220–277 V circuit capable of 20 A must be provisioned before installation.

Upgrade Context and Value

Replacing older SHA256 ASICs that run above 30 J/TH cuts electricity cost per terahash by roughly half at current rates. The efficiency gain pays back the hardware investment faster when power prices exceed typical industrial tariffs. If your existing fleet operates near 45 J/TH or higher, the jump to 15 J/TH delivers a clear margin improvement within a single difficulty epoch.

Highlights

  • 234 Th/s hashrate for high Bitcoin mining throughput
  • 15 J/TH power efficiency reduces electricity cost per terahash
  • 3510 W power draw at 220–277 V AC input
  • 76 dBA noise level at 30 °C ambient temperature
  • Operates from –20 °C to 45 °C with 10–90 % humidity tolerance

Specifications

BrandAntminer
SeriesS21 Pro+
ModelS21 Pro+ 234T
Part#S21 Pro+ 234T
TypeMining Machine/Miner
Crypto AlgorithmSHA256
Compatible CurrencyBitcoin (BTC)
Mining HardwareASIC
Hashrate234 Th/s
Network ConnectionRJ45 Ethernet 10/100M
Noise level76 Noise(3-2)@30℃, dBA
Power Consumption3510 W
Power Efficiency15 J/TH
Operation Temperature-20~45°C
Storage Temperature-20~70°C
Operation Humidity10%~90%RH
Dimension450*219*293mm
Weight18.5kg

Questions about this item

What is the maximum operating temperature before the S21 Pro+ 234T throttles under sustained load?

The miner is rated for continuous operation up to 45 °C; above this temperature the hardware will begin to throttle to protect itself.

How much noise and heat does the S21 Pro+ 234T produce when running all day?

It emits 76 dBA at 30 °C ambient and draws 3510 W, so virtually all of that power becomes heat that must be exhausted from the room.

What power infrastructure must already be in place for the S21 Pro+ 234T to operate?

A 220–277 V AC circuit capable of delivering at least 20 A (4000 W) with a suitable IEC C19 or hard-wired connection is required before the unit can be powered on.

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