Bitmain Antminer S21 Hyd (335Th) is an ASIC miner designed for SHA-256 algorithm, specifically targeting BTC (Bitcoin) . It delivers a maximum hashrate of 335Th/s while consuming 5360W of power, resulting in an energy efficiency of 16j/Th.
Bitmain Antminer S21 Hyd (335Th) Specifications:
Manufacturer | Bitmain |
Model | Antminer S21 Hyd (335Th) |
Also known as | Antminer S21 Hydro 335T |
Release | Feb 2024 |
Size | 410 x 170 x 209mm |
Noise level | 50dB |
Cooling | Hydrocooling |
Power | 5360W |
Interface | Ethernet |
Temperature | 5 – 45 °C |
Humidity | 5 – 95 % |





Processing & Shipping Time
- All shipments are dispatched via UPS, DHL, or FedEx. Upon request, we can accommodate other carriers as needed.
- We offer Delivered Duty Paid (DDP) shipping for worldwide deliveries, ensuring a smooth customs clearance process.
- If any specific documentation is required for customs, please contact us in advance so we can provide the necessary paperwork.
- Orders are processed and shipped within 48 to 72 business hours upon confirmation of payment.
- Once the order has been shipped, customers will receive an email with the tracking number and order details for easy monitoring of the shipment.
- For any additional shipping inquiries or special requests, feel free to reach out to our support team.
Warranty & Return
- All products come with a 1-year extended warranty, which includes 6 months of manufacturer warranty and an additional 6 months of free extended warranty provided by HEX Miners.
- In the event of malfunction or damage, we will repair or replace the machine at no cost to the customer during the warranty period.
- We offer a 30-day free return policy on all orders, with return shipping costs fully covered by us.
- Our products undergo rigorous quality inspections and are meticulously packed to ensure they arrive in perfect condition.
- After the warranty expires, repair or replacement costs will apply.
- Additionally, we offer 24/7 technical support for the entire lifespan of your miner, ensuring continuous assistance whenever needed.
Bart Hendriks (verified owner) –
Only took one day after payment for them to ship. Their team responded fast and gave clear instructions. My order arrived quicker than expected with free shipping.
Adnan Al Badwawi (verified owner) –
Everything came securely packaged and protected. Miner is powerful and matches all specs listed. My order was shipped just one day after I paid.
Andrew Foster (verified owner) –
Shipping was completely free and the package arrived fast. DDP shipping meant no customs hassles or extra fees. Everything came securely packaged and protected.
Shaun MacLeod (verified owner) –
Support team guided me through every step post-purchase. HEX Miners is now my go-to for ASIC hardware. The box was sturdy and the unit came in mint condition.
Nathan Martel (verified owner) –
There were zero customs charges thanks to their DDP option. I appreciated how quickly it was shipped after paying. Really happy with my decision to go with HEX Miners.
Harry Mason (verified owner) –
I was surprised how fast the free shipping was. Powerful unit, solid hash rate for Bitcoin mining. Works perfectly and is a great investment.
Tamer Al Dhaheri (verified owner) –
HEX Miners is now my go-to for ASIC hardware. The packaging was solid and everything arrived in perfect condition. Only took one day after payment for them to ship.
Ethan Parker (verified owner) –
Would definitely buy again from HEX Miners. My order arrived quicker than expected with free shipping. Powerful unit, solid hash rate for Bitcoin mining.
Jacob Reed (verified owner) –
No customs fees thanks to their DDP shipping service. The packaging was solid and everything arrived in perfect condition. Really happy with my decision to go with HEX Miners.
Ethan Parker (verified owner) –
Excellent SHA-256 miner, runs smoothly and earns steadily. The delivery was incredibly fast and free of charge. No customs fees thanks to their DDP shipping service.
Salem Al Riyami (verified owner) –
Bulk purchase went smoothly, all units arrived fast. There were zero customs charges thanks to their DDP option. The unit runs strong and delivers solid hash rates.
Tamer Al Dhaheri (verified owner) –
Really happy with my decision to go with HEX Miners. Mining Bitcoin has never been more efficient, great machine. Had questions and they were resolved quickly by support.
Jacob Reed (verified owner) –
The packaging was solid and everything arrived in perfect condition. Ordered in bulk and the pricing was very competitive. Support team guided me through every step post-purchase.