
Bitmain Antminer S21+ 235 TH/s Used
Antminer S21+
Used Bitmain Antminer S21+ miners rated at 235 TH/s. Current supplier availability is offered in a minimum quantity of 500 with 7-day DOA coverage. The product image is representative manufacturer imagery, not a photograph of the exact used units.
HASHRATE
235 TH/s
EFFICIENCY
16.5 J/TH
POWER
3878 W
COOLING
Air
Representative manufacturer/model image; the exact used units may show cosmetic variation.
AVAILABILITY & FULFILLMENT
AvailabilityIn Stock
ConditionUsed
FulfillmentCurrent supplier-available lot. Minimum order: 500 units.
Warranty7-day DOA coverage.
This unit draws 3878 W continuously. Confirm your facility's power and cooling capacity before ordering.
$1,392.05$5.92 /TH
USD. Standard domestic shipping is included in the displayed price.
Minimum order: 500 units.
Payment assistance
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Full specifications
ManufacturerBitmain
ModelAntminer S21+
Algorithm / coinSHA-256 / BTC
Hashrate235 TH/s
Power at wall3878 W
Efficiency16.5 J/TH (lower is better)
CoolingAir
Input voltage220–277 V AC
PhaseSingle-phase
AC frequency50–60 Hz
Input / current draw20 A
NetworkRJ45 Ethernet 10/100M
Unit dimensions450 × 219 × 293 mm
Net unit weight21.5 kg
Operating temperature−20–45 °C
Storage temperature−20–70 °C
Operating humidity10–90% RH, non-condensing
Altitude limit≤ 2,000 m
Manufacturer tolerancesHashrate ±3%; power and efficiency ±5%.
Shipping & fulfillment
Current supplier-available lot. Minimum order: 500 units.
Packaged dimensions630 × 350 × 430 mm
Gross shipping weight24.5 kg
Warranty & returns
7-day DOA coverage.
Package & power basis
Used miner with manufacturer-standard integrated power supply basis unless the order confirmation states otherwise.
220–277 V AC, 50–60 Hz, single-phase, 20 A.
Setup prerequisites
- Dedicated electrical circuit sized for continuous 3878 W draw
- Adequate facility cooling appropriate for the listed air configuration
- Wired Ethernet connection and a mining-pool account before first boot
FAQ & support
Electrical, hosting, firmware, and payment questions are covered in the support center — or talk to hardware sales before you order.