Antminer S21+ Hydro 358T
Original price was: $6,526.80.$6,226.80Current price is: $6,226.80.
The Antminer S21+ Hydro delivers a massive 358 TH/s hash rate with an impressive energy efficiency of 15.0 J/TH, thanks to its advanced liquid cooling system. Designed for industrial-scale mining operations, the Hydro version ensures stable performance, lower noise, and extended machine lifespan—making it a top choice for miners prioritizing efficiency and durability in high-density deployments.
300 in stock
| Performance Curves
1. Hashrate vs. Inlet Coolant Temperature
2. Power Efficiency vs. Inlet Coolant Temperature
(1-1) The hashrate value, and power efficiency on wall are all typical values. The actual hashrate value fluctuates by ±3%, and the actual power efficiency on wall fluctuate by ±5%.
| Specifications
| Product Glance | Value |
| Model | S21+ Hyd. |
| Crypto algorithm/coins | SHA256|BTC/BCH/BSV |
| Typical hashrate, TH/s(2-1) | 358 |
| Power on wall @35℃(1-2), Watt(2-1) | 5370 |
| Power efficiency on wall@35℃(2-2), J/T(2-1) | 15 |
| Detailed Characteristics | Value |
| Power Supply | |
| Phase | 3 |
| Input voltage, Volt(3-1) | 380~415 |
| Input frequency range, Hz | 50~60 |
| Input max current, Amp | 12 |
| Hardware Configuration | |
| Networking connection mode | RJ45 Ethernet 10/100M |
| Server size (length*width*height, w/o package), mm | 339*173*207 |
| Server size (length*width*height, with package), mm | 570*316*430 |
| Net weight, kg | 14.5 |
| Gross weight, kg | 16.4 |
| Environment Requirements | |
| Inlet coolant temperature, °C | 20~50 |
| Coolant flow, L/min | 8.0~10.0 |
| Coolant pressure, bar | ≤3.5 |
| Working coolant(3-2) | Antifreeze/Pure water/Deionized water |
| Coolant pH value | Antifreeze: 7.0~9.0 Pure water: 6.5~7.5 Deionized water：8.5~9.5 |
| Diameter of coolant pipe connector, mm | OD10 |
| Storage temperature, °C | -20~70 |
| Operation humidity(non-condensing), RH | 10~90% |
Notes:
(2-1) The hashrate value, power on wall, and power efficiency on wall are all typical values. The actual hashrate value fluctuates by ±3%, and the actual power on wall and power efficiency on wall fluctuate by ±5%.
(2-2) Inlet coolant temperature.
(3-1) Caution: Wrong input voltage may cause server damaged.
(3-2) For detailed working coolant use and maintenance instructions, please refer to "ANTSPACE HK3 Water Cooling Container & Dry-Wet Tower Product Manual", Chapter 9, Article 3, Point 6, "Maintenance of Coolant"!
| Purchasing Guidelines
1. The shipping costs, customs charges, and taxes(if any) are not included in the retail price shown above.
2. After an order has been submitted, a request to cancel the order, refund any part of the ordered amount or change the ordered item(s) to different item(s) or different batch(es) will not be entertained by Oh Biz.
3. The pictures shown are for reference only; the final shipment version shall prevail.
| Shipping Details
1. Shipments will be scheduled on a first-paid-first-ship basis for orders on which Oh Biz has received full payment.
2. You are responsible for any customs delays or returned shipments due to a lack of proper documentation. It's highly recommended to be aware of local customs clearance policies and to prepare all customs documentation ahead of time to avoid any customs clearance delays or unexpected costs.
| Warranty
1. A 365-day warranty is provided starting from the shipping date.
2. If the user fails to use the product per the given instructions, specifications, and conditions provided or changes the function settings of the unit without Oh Biz's prior consent, Oh Biz will not be liable for any damage arising therefrom.
| Crypto |
BTC |
|---|---|
| Cooling Method |
Hydro Cooling |
| Power Cord |
C20 ,P33 ,US ,OK/UE/AU |
Bitmain Technologies is a leading Chinese company specializing in cryptocurrency mining hardware. Founded in 2013, it is best known for its Antminer series, which are powerful and energy-efficient ASIC miners widely used for Bitcoin mining.
In addition to hardware, Bitmain also operates major mining pools like Antpool and BTC.com, making it a key player in the global blockchain ecosystem. The company is also expanding into AI chip development and high-performance computing.
Shipping for In-Stock Orders
In-stock miners will ship within 3 business days after full payment is received. For bulk orders, please allow an additional 1–2 days for handling. We ship via DHL Express, UPS, FedEx, or TNT, depending on your location and preferences.
Payments made by wire transfer (T/T) may take 3–7 business days to verify, while cryptocurrency payments are usually confirmed within a few hours to 1 business day. Shipments are processed on a first-paid, first-shipped basis.
Shipping for Pre-Orders
Pre-order miner deliveries are based on the factory’s production schedule. Estimated delivery times are listed on the order page but may shift due to production delays.
Once shipped, international delivery typically takes 5–8 business days, with remote areas potentially requiring 8–10 days.
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