Bitmain Antminer S21 Immersion (301Th) is an ASIC miner designed for 2 algorithms (SHA-256, SHA-256), specifically targeting BTC (Bitcoin) . It delivers a maximum hashrate of 301Th/s while consuming 5569W of power, resulting in an energy efficiency of 18.502j/Th.
Bitmain Antminer S21 Immersion (301Th) Specifications:
| Manufacturer | Bitmain |
| Model | Antminer S21 Immersion (301Th) |
| Also known as | Bitcoin Miner S21 lmmersion |
| Release | Dec 2024 |
| Size | 293 x 236 x 364mm |
| Weight | 17150g |
| Noise level | 50dB |
| Cooling | Oil immersion |
| Power | 5569W |
| Voltage | 380-415V |
| Interface | Ethernet |
| Temperature | 30 – 55 °C |
| Humidity | 10 – 90 % |
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.
Hugo Dahl (verified owner) –
There were zero customs charges thanks to their DDP option. Only took one day after payment for them to ship. Very well packed, nothing was damaged during shipping.
Tim Jansen (verified owner) –
The machine works exactly as described and performs great. DDP shipping meant no customs hassles or extra fees. Had questions and they were resolved quickly by support.
Maximilian Wagner (verified owner) –
The machine works exactly as described and performs great. The packaging was solid and everything arrived in perfect condition. No customs fees thanks to their DDP shipping service.
Gabriel Moreau (verified owner) –
There were zero customs charges thanks to their DDP option. They replied quickly and helped me with all setup questions. Everything came securely packaged and protected.
Amir Al Jabri (verified owner) –
Shipping was completely free and the package arrived fast. HEX Miners is now my go-to for ASIC hardware. Fast processing – shipped 1 day after confirming payment.
Thomas Hill (verified owner) –
Didn’t have to pay any customs taxes due to DDP delivery. They replied quickly and helped me with all setup questions. Bulk purchase went smoothly, all units arrived fast.
Robert Russell (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.
Isak Larsson (verified owner) –
Really happy with my decision to go with HEX Miners. Packed very carefully – miner arrived with no issues. Great buying experience from start to finish.
Jonas Klein (verified owner) –
Ordered in bulk and the pricing was very competitive. Only took one day after payment for them to ship. Mining Bitcoin has never been more efficient, great machine.
George Wallace (verified owner) –
Shipping was completely free and the package arrived fast. My order arrived quicker than expected with free shipping. The packaging was solid and everything arrived in perfect condition.
Nathan Moreau (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.
Oliver Clarke (verified owner) –
Ordered in bulk and the pricing was very competitive. The delivery was incredibly fast and free of charge. Cleared customs without a problem – no duties paid.
Jack Turner (verified owner) –
Had questions and they were resolved quickly by support. Really happy with my decision to go with HEX Miners. This ASIC miner is a beast when it comes to Bitcoin hashing.