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Antminer S21 Pro
$1,665.00
- Brand: Antminer S21 Pro
- Model: 234 TH/s @ 3531w
- SPOT. Shipped out within 7 working days.
The Antminer S21 Pro, an upgraded model from Bitmain, achieves a leading hashrate of 250 TH/s for Bitcoin mining with a power consumption of 3,550W, redefining efficiency standards.
Specifications
| Brand | Antminer S21 Pro |
|---|---|
| Model | S21 Pro |
| Algorithm | Cryptocurrency | SHA256 | BTC/BCH/BSV |
| Hash Rate | 234TH/s ± 3% |
| Power on wall @25°C, Watt | 3531w ± 5% |
| Power efficiency on wall @25°C, J/TH | 15 ± 5% |
| Power Supply | With PSU |
| Power supply AC Input voltage, Volt(1-1) | 200~240 |
| Power supply AC Input Frequency Range, Hz | 47~63 |
| Power supply AC Input current, Amp(1-2) | 20(1-3) |
| Networking connection mode | RJ45 Ethernet 10/100M |
| Miner Size (Length*Width*Height, w/o package),mm(2-1) | 400*195.5*290 |
| Miner Size (Length*Width*Height, with package),mm | 570*316*430 |
| Net weight, kg(2-2) | 14.2 |
| Gross weight, kg | 16.0 |
| Operation temperature,°C | 0~40 |
| Storage temperature,°C | -20~70 |
| Operation humidity(non-condensing) , RH | 10~90% |
| Operation altitude, m(3-1) | ≤2000 |
| Warranty | Official manufacturer warranty |
| Brand | Antminer |
|---|---|
| Model | S21 Pro |
| Hash Algorithm | SHA-256 |
| Hashrate | 234 TH/s ± 5% |
| Power | 3531w ± 5% |
| Efficiency | 15 J/TH ± 5% |
| Mineable Coin | Bitcoin – BTC, BitcoinCash – BCH |
| PSU | With PSU |
| Fan | 4 x fan |
| Networking | RJ45 Ethernet 10/100M |
| Miner Size | 400 * 195.5 * 290 |
| Net Weight(kg) | 16.1 |
| Miner Size (Length * Width * Height, w/o package), mm | 400 * 195.5 * 290 |
| Miner Size (Length * Width * Height, with package), mm | 570 * 316 * 430 |
27 reviews for Antminer S21 Pro
Only logged in customers who have purchased this product may leave a review.
General Questions
Q: What is BulkMiners, and what do you offer?
A: BulkMiners provides wholesale cryptocurrency mining hardware, including ASIC miners like Antminer S23 Hyd, with bulk discounts, transparent pricing, and global shipping.
Q: How do I start buying from BulkMiners?
A: Visit our Products page, select your mining hardware, and add to cart. Register or log in to proceed with bulk orders and enjoy tiered pricing.
Q: Is BulkMiners available worldwide?
A: Yes, we ship globally with free delivery on qualifying bulk orders. Check product pages for shipping details and estimated times.
Ordering & Shipping
Q: What are your bulk order requirements?
A: Bulk orders start at 2 units with tiered discounts (e.g., 10% off for 2-9 units).
Q: How long does shipping take?
A: hipping varies by location and order size. Standard delivery takes 5-15 days.
Q: Do you offer tracking for shipments?
A: Yes, all orders include tracking. You’ll receive a tracking number via email once your shipment is dispatched.
Returns & Exchanges
Q: What is your return policy?
A: We offer a 14-day return policy for unopened products. Contact support@bulkminers.com with your order number for assistance.
Q: Can I exchange a defective miner?
A: Yes, exchange defective units within 30 days under our manufacturer warranty. Provide proof of defect and order details to support@bulkminers.com.
Q: Are there restocking fees for returns?
A: No restocking fees apply if returned within 14 days and in original condition.
Warranties & Support
Q: What warranties do your products have?
A: All mining hardware comes with official manufacturer warranties (e.g., 180 days). Details are on each product page.
Q: How can I get technical support?
A: Contact support@bulkminers.com for technical assistance. Our team responds within 24 hours.
Q: What if my miner arrives damaged?
A: Report damage within 7 days with photos and order details to support@bulkminers.com. We’ll arrange a replacement or refund.







candksantos (verified owner) –
Packaging is also durable and fast shipping thank you
tommyfortier (verified owner) –
Excellent seller, recommended 100%
l.l (verified owner) –
Fast Shipping, Recommend
lasenj11 (verified owner) –
Good packaging, Recommend!
covisko (verified owner) –
Packing with meticulous
mikecrane1978 (verified owner) –
Works great, Strongly recommend!
sg83 (verified owner) –
Fast shipping thanks.
sergo-741 (verified owner) –
The miner arrived well-packed and in good apparent condition, they need to be tested, but they arrived in good time in Mexico. The general state is of the miner is regular (a little physically maltradmated), but generally all good. Excellent communication with seller
ali (verified owner) –
quick response, recommended
fermamaxarchi (verified owner) –
best reseller, thanks a lot
city_dweller (verified owner) –
fast shipping, good packaging, powerful miners.
danilov (verified owner) –
fast shipment, will buy again
ya.kotopuzik2013 (verified owner) –
an hour.
b79774760766 (verified owner) –
settings.
mickel.bernier (verified owner) –
It’s coming, it’s working.
ivetmos (verified owner) –
acceptable
rhilding12 (verified owner) –
fast and trusted! recommended reseller!
mikeygtz (verified owner) –
Good reseller! thanks a lot
alexeyvolkov69 (verified owner) –
good seller!
firestarter1979 (verified owner) –
Very good item! recommended reseller.
ya.kotopuzik2013 (verified owner) –
Good reseller! will order again
tiger020889 (verified owner) –
I run it in my home office, and the noise level is barely noticeable.
freakbros1 (verified owner) –
Their blog posts were a lifesaver for understanding the basics.
frank (verified owner) –
good communication, recommended
josh.bardoel (verified owner) –
Very good quality.
matterb (verified owner) –
The dashboard is user-friendly, and the miner is super efficient for its size.
cyy8913 (verified owner) –
Got it. Works OK.