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Bitmain Antminer S21+ Hyd. 358 Th/s Bitcoin Miner 358 Th/s SHA-256 (Bitcoin) ASIC miner at 5370W — Bitmain New unit for sale at Bitcoin Mining Depot

Bitmain

Bitmain Antminer S21+ Hyd. 358 Th/s Bitcoin Miner

358 Th/s SHA-256 (Bitcoin) miner at 15 J/Th and 5370W. New Bitmain stock, bench-tested, warranty, worldwide shipping from Hong Kong.

$2,864In Stock
Hashrate
358 Th/s
Power draw
5370W
Efficiency
15 J/Th
Algorithm
SHA-256 (Bitcoin)
Condition
New
  • Warranty backed and bench-tested before dispatch
  • Insured worldwide freight with pre-filled customs paperwork
  • In-house repair lab for the life of the machine

Questions about this model? Call +852 4719 3309 or email sales@bitcoinminingdepot.com.

Product overview

Bitmain Antminer S21+ Hyd. 358 Th/s Bitcoin Miner - genuine Bitmain hardware in stock at Bitcoin Mining Depot and shipped worldwide from our Causeway Bay, Hong Kong warehouse. Every unit is bench-powered, hashrate-verified against factory specification and thermally checked before it is packed, so the machine that arrives is exactly the machine you paid for.

Performance and specifications: the Bitmain Antminer S21+ Hyd. runs the SHA-256 (Bitcoin) algorithm at 358 Th/s while drawing approximately 5370W at the wall, giving a rated efficiency of 15 J/Th. It is a hydro (water-cooled) machine and mines Bitcoin (BTC), Bitcoin Cash (BCH) and Bitcoin SV (BSV). Efficiency - joules per unit of hashrate - is the number that decides whether a miner survives a difficulty increase, so compare 15 J/Th against your electricity price before you commit capital.

Profitability and ROI: model it the honest way. Take daily revenue at current network difficulty, subtract (5370 / 1,000 x 24 x your kWh rate), then divide the delivered cost by that daily margin to get payback in days. Machines in this class stay comfortably cash-flow positive under roughly $0.06/kWh and need careful modelling above $0.10/kWh. Send us your power rate and we will return a written projection at no cost.

Power and site requirements: plan a dedicated 200-240 V circuit with 20% breaker headroom, because a standard 110 V residential outlet will not run this hardware. Hydro units need a prepared coolant loop, manifold and dry cooler, and reward you with far quieter operation and much better efficiency retention in warm ambient conditions.

Shipping, duty and payment: orders leave Hong Kong within 24-72 hours of cleared payment on express air freight with tracking, full customs documentation and double-boxed, foam-cradled packing with separately packed PSUs. We deliver to the USA, Canada, Europe, Australia and 100+ countries every week. Pay in Bitcoin, USDT and other major cryptocurrencies, or with CashApp, Chime and bank transfer, and duty and VAT are itemised up front.

Warranty and support: the Bitmain Antminer S21+ Hyd. ships with written warranty terms and DOA protection, and our in-house Hong Kong repair centre services hashboards, PSUs and control boards for the life of the machine. Free remote setup support covers pool configuration, firmware and tuning. Ordering three units or more? Use our wholesale desk for volume pricing and pallet freight, or ask about hosting if industrial power is not available at your site.

What is included

  • Miner unit with original manufacturer packaging
  • Matched power supply where applicable
  • Bench test report with measured hashrate
  • Warranty registration and RMA instructions
  • Pool and firmware configuration guidance
  • Access to our technical support desk 24/7

How to set up the Bitmain Antminer S21+ Hyd. 358 Th/s Bitcoin Miner — step-by-step guide

Follow these steps in order to go from delivery to a live, hashing machine. Most deployments are online the same day, and our support desk will stay on the call with you until the miner hits its rated hashrate.

  1. 1. Confirm site power before delivery

    Provision a dedicated 200–240V circuit per unit with 20% breaker headroom and a PDU rated for continuous load — a standard residential outlet cannot run this machine.

  2. 2. Rack the unit with clean airflow

    Mount the miner with unobstructed intake and exhaust, keep intake air below 35°C, and run negative-pressure exhaust so hot air is never recirculated.

  3. 3. Network the miner and find its IP

    Connect Ethernet — Wi-Fi is not supported. Power on, wait about 60 seconds, then locate the machine using the manufacturer's IP reporter tool or your router's DHCP client list. Open that IP in a browser and sign in to the web dashboard, then immediately change the default password.

  4. 4. Configure your wallet and mining pool

    Create a receiving address for the coin you intend to mine, add it to your pool account payout settings, then enter the pool stratum URL, worker name and password in the miner's Pools tab. Configure two backup pools for automatic failover.

  5. 5. Verify hashrate and stabilise

    Save the configuration and let the machine warm up for 15–20 minutes. Confirm the dashboard shows the rated 358 Th/s with zero hardware errors, and check the same worker appears live on your pool page. Watch board temperatures and fan speeds for the first hour.

  6. 6. Monitor, maintain and get support

    Set pool alerts for offline workers, review payouts after the first 24 hours, and schedule maintenance — quarterly dust cleaning and fan inspection. Bitcoin Mining Depot provides free remote setup assistance and 24/7 technical support for every unit we ship.

Bitmain Antminer S21+ Hyd. 358 Th/s Bitcoin Miner — frequently asked questions

Keep researching the Bitmain Antminer S21+ Hyd. 358 Th/s Bitcoin Miner

Compare this machine against other Bitmain models, browse the category hubs it belongs to, and read the operator guides that cover its hashrate, efficiency and payback math.

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