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Rectangular silver metal mining unit with four visible fans on front and rear, RJ45 port on side, industrial handle grips

Antminer

Antminer S21 XP 270T mining hardware

SKU CH-MHWG-9XQ2S MPN S21

SHA-256 ASIC miner delivering 270 Th/s at 13.5 J/TH with 3645 W power draw and 76 dBA noise

  • Hash rate270 Th/s
  • Hash algorithmSHA256
  • Supported coinsBitcoin (BTC)
  • Network interfaceRJ45 Ethernet 10/100M
  • Operating noise70db
  • Cooling fans4
  • High 270 Th/s hashrate for strong Bitcoin mining output
  • Efficient 13.5 J/TH power efficiency lowers electricity cost per terahash
  • 3645 W power draw fits standard 220–277 V AC supply
  • Air-cooled design with four fans maintains 76 dBA noise at 30 °C ambient
  • Compact 450×219×293 mm frame weighs 18.7 kg for rack or shelf mounting

Purpose-built Bitcoin miner

The Antminer S21 XP 270T is an air-cooled ASIC designed for SHA-256 mining of Bitcoin, Bitcoin Cash and Bitcoin SV. It delivers a nominal hashrate of 270 Th/s while drawing 3645 W from a 220–277 V AC supply, yielding an efficiency of 13.5 J/TH. The unit weighs 18.7 kg and measures 450 × 219 × 293 mm.

Network and environmental limits

Connectivity is provided by a single RJ45 Ethernet port operating at 10/100 Mbit/s. The miner tolerates ambient temperatures from -20 °C to 45 °C and relative humidity of 10–90 % non-condensing, with a maximum operating altitude of 2000 m. Acoustic output reaches 76 dBA at 30 °C while moving up to 480 CFM of air through four fans.

Installation notes

The machine ships in a 630 × 350 × 430 mm carton weighing 21.5 kg and requires a single-phase 220–277 V circuit rated for at least 20 A at 50–60 Hz. No wireless or secondary network interfaces are present, so a wired Ethernet drop is mandatory. Bitmain voids coverage if firmware settings are altered without prior consent.

How it compares

Measured against everything we stock in ASIC Hardware & PCIe Risers, at today’s prices. Recalculated every night.

Price $3,666.99
Pricier than about 91% of the 566 comparable items (median $792.99).

New to this? Buying an ASIC miner with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameAntminer
Product lineS21 XP 270T
Model nameS21 XP 270T
Product typeMining Machine/Miner
Performance
Hash rate270 Th/s
Hash algorithmSHA256
Connectivity
Network interfaceRJ45 Ethernet 10/100M
Power
Power draw3645 W
Power supply220 to 277 AC
Power efficiency13.5 J/TH
Size & build
Measurements450 × 219 × 293 mm
Product weight18.7 kg
Compatibility
Supported coinsBitcoin (BTC)
Environment & compliance
Operating noise70db
Operation temperature-20 to 45 ?
Storage temperature range-20 to 70 ?
Operation humidity10%~90% RH
More details
Cooling fans4

Questions about this item

What power supply and circuit do I need to run this miner?

It requires a 220–277 V AC single-phase supply rated for at least 20 A and draws 3645 W at the wall.

How much heat and noise will the unit add to my space?

It exhausts up to 480 CFM of air and produces 76 dBA at 30 °C ambient, so plan for strong ventilation and sound isolation.

Which coins can I mine and how do I connect it to the network?

It mines SHA-256 coins such as BTC, BCH and BSV and connects via a single RJ45 Ethernet 10/100 M port.

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