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Rectangular silver ASIC miner with dual fans on front grille

AFRNDK

AFRNDK Antminer S21+ 235TH/s 3564W mining hardware

SKU CH-70GJ-B5427

SHA-256 ASIC Bitcoin miner delivering 235 TH/s at 3564 W with 75 dB noise in a 400 × 195 × 290 mm chassis

  • TypeMining Machine/Miner
  • Crypto AlgorithmSHA256
  • Compatible CurrencyBitcoin (BTC)
  • Mining HardwareASIC
  • Hashrate235TH/S
  • Noise level85dB
  • 235 TH/s hashrate maximises Bitcoin mining output
  • 3564 W power draw optimises energy efficiency
  • 75 dB noise level suits managed facilities
  • 400 × 195 × 290 mm footprint fits dense racks
  • Operates reliably from 10 °C to 40 °C

AFRNDK Antminer S21+ Bitcoin ASIC

This ASIC miner is built for Bitcoin using the SHA-256 algorithm and delivers a hashrate of 235 TH/s. It draws 3564 W of power and is intended for operators who want maximum throughput from a single unit. The machine ships new and ready for deployment.

Ethernet interface and 220 V power requirement

The miner connects to the network through a single Ethernet port and requires a 220 V supply; incorrect voltage can damage the hardware. It operates between 10 °C and 40 °C with humidity from 10 % to 90 %. Two onboard fans produce a noise level of 75 dB to 85 dB.

235 TH/s hashrate at 3564 W

The hashrate of 235 TH/s and the power draw of 3564 W together determine the energy efficiency that decides whether this model fits a given electricity cost. No other specification outweighs this ratio for profitability calculations.

Highlights

  • 235 TH/s hashrate maximises Bitcoin mining output
  • 3564 W power draw optimises energy efficiency
  • 75 dB noise level suits managed facilities
  • 400 × 195 × 290 mm footprint fits dense racks
  • Operates reliably from 10 °C to 40 °C

Specifications

BrandANTMINER
SeriesS21
ModelS21PLUS
TypeMining Machine/Miner
Crypto AlgorithmSHA256
Compatible CurrencyBitcoin (BTC)
Mining HardwareASIC
Hashrate235TH/S
Noise level85dB
Power Consumption3564W

Questions about this item

What power supply and voltage does this miner need?

The unit requires a 220 V supply and draws 3564 W at the wall. Plan a dedicated circuit and a PSU rated for continuous load at that wattage.

Will the noise level suit a home or office environment?

The manufacturer rates the sound at 75 dB; the supplier also lists 85 dB. Both are comparable to a loud vacuum cleaner, so a separate, ventilated room is recommended.

What are the physical dimensions and operating temperature range?

The chassis measures 400 × 195 × 290 mm and is rated for 10–40 °C ambient temperature with 10–90 % relative humidity.

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