Bitdeer SEALMINER A4 Ultra Hydro Bitcoin Miner

SKU: SEALMINER A4 Ultra Hydro PSU Included Manufacturer Warranty

Bitdeer SEALMINER A4 Ultra Hydro is a high-performance hydro-cooled ASIC miner delivering 886 TH/s at 8,372.7 W and 9.45 J/TH efficiency, ideal for large-scale, energy-efficient Bitcoin mining operations.

With rapid market changes, miner prices can vary frequently, even within a short time. Kindly verify the latest price with our sales team before making your payment.

$9,980.00

Available on backorder

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    Apexto is now offering U.S.-based inventory and DDP (Delivered Duty Paid) shipping for customers in the U.S. For more details, pls. contact our sales team.

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      Payment Method

      USD

      USDT(TRC 20)

      KAS

      BTC

      ETH

      LTC

      DOGE

      USDC(ERC20)

      Profitability

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      Product Description

      The Bitdeer SealMiner A4 Ultra Hydro is the flagship hydro-cooled ASIC miner in the A4 series, designed for high-performance Bitcoin mining. Delivering up to 886 TH/s at 8,372.7 W with a rated efficiency of 9.45 J/TH, it sets a new standard for energy-efficient, large-scale mining.The 2U form factor allows easy integration into modern data center racks, maximizing space utilization and operational efficiency.

      Key Features

      Strategic Efficiency – Breaks the 10 J/TH barrier with 9.45 J/TH, providing strong energy efficiency and long-term profitability.

      High Hashrate Performance – Consistent 870–900 TH/s ensures reliable mining even as difficulty rises.

      Silent Hydro-Cooling – Advanced liquid-cooling system minimizes fan noise for a quieter, stable mining environment.

      Optimized Rack Density – 2U form factor (482 × 665 × 86 mm) maximizes deployment density and lowers operational costs per TH.

      Efficient Power Management – Supports 380–480 V three-phase AC input with up to 97% power supply efficiency, reducing energy loss and boosting performance.

      Specifications

      Key SpecificationsNormal Mode
      Crypto Algorithm | CoinsSHA256| BTC/BCH/BSV
      Hash Rate, TH/s630~730 ±10%
      Power Efficiency @35°C, J/TH10.9± 5%
      Power Consumption @35°C, W6867~7957±10%
      Power Supply Requirements 
      Input Voltage, VAC380-480 , 3~
      Maximum Input Current, Amp17
      Input Frequency , Hz50/60
      Hardware Configuration 
      Product Dimensions, W*D*H, mm482*665*86
      Packaging Dimensions, W*D*H, mm567*787*203
      Product Net Weight, kg20.5
      Gross Weight Including Packaging, kg23
      Internet ConnectionsRJ45 Ethernet 10/100M
      Environmental Operating Parameters 
      Inlet Liquid Temperature, °C ¹20~55
      Operating Humidity (Non-Condensing), RH10%~90%
      Storage Temperature, °C ²-30~70
      Liquid Operating Parameters 
      Liquid Pressure, bar≤3.5
      Liquid MediumPure water (or distilled water) + special corrosion inhibitor or antifreeze (select the ratio according to the freezing Point)
      Liquid Flow, L/minPure Water ≥ 10.2L/min for pure water; if the antifreeze needs to be changed, the flow rate needs to be increased, such as 30% ethylene glycol aqueous solution antifreeze requiring ≥11L/min. <br>*Remarks:10.2L/min corresponds to the temperature difference between inlet and outlet water close to 10.5°C at normal mode.
      ¹ Inlet coolant temperature. 
      ² Ensure that all liquid is drained from the equipment prior to storage and transportation. 

      Sealminer A4 Pro Hydro FAQs

      What is the SEALMINER A4 Ultra Hydro?

      Flagship hydro-cooled miner delivering up to 900 TH/s at 8,372 W with 9.45 J/TH efficiency.

      How efficient is it?

      Rated efficiency is 9.45 J/TH, providing top energy savings for BTC mining.

      Benefits of liquid cooling?

      Reduces noise, stabilizes temperature, and ensures long-term reliable operation.

      Can it fit standard racks?

      Yes, 2U form factor (482 × 665 × 86 mm) fits standard server racks for dense deployment.

      What are the power requirements?

      Requires 380–480 V three-phase AC input with up to 97% power supply efficiency.

      Power Cord Standard

      Common plug standards and their compatible regions.

      US Standard

      Type A/B

      UK Standard

      Type G

      EU Standard

      Type C/E/F

      CN Standard

      Type I

      Processing & Shipping Time

      In-stock miners will ship within 3 business days. For bulk orders, please allow an additional 1-2 days via DHL Express, UPS, FedEx, or TNT.

      Pre-order miner delivery times depend on the factory schedule. Estimated delivery dates are provided on the order page, but delays may occur due to production issues.

      Shipments are processed on a first-paid, first-shipped basis. Once full payment is received, we aim to ship as quickly as possible. Payments via wire transfer (T/T) may take 3-7 business days to verify, while cryptocurrency payments typically take a few hours to 1 business day.

      International shipping usually takes 5-8 business days, with remote locations potentially requiring 8-10 days.

      *All sales are final and non-refundable. Please understand, this is an industry standard.

      Payment Policies

      All products listed on our website are priced in US Dollars.

      We accept payments via bank wire transfer or online cryptocurrency payment (BTC, ETH, KAS, USDT, USDC).

      If you prefer other payment methods, please contact our sales team.

      Important: All cryptocurrency payments received on the website are automatically converted to USDT. If a product is out of stock, we will contact you for a refund. The refund will be based on the USD price at the time of your original order.

      Taxes & Custom Duties

      We offer DDP (Delivery Duty Paid) shipping to some countries, including the United States, Canada, Russia, Dubai, and certain EU countries.

      If you require DDP shipping, please contact our customer service. For countries without DDP shipping or for standard shipping, we can help reduce taxes by providing a lower invoice value.

      Customs duties are not included in the total price. You will need to pay them once the goods arrive in your country. Simply contact your local logistics company to settle the fees. If needed, we can provide a commercial invoice with a declared value of your choice.

      Please notify us immediately if customs requests documents, as improper filing may lead to higher fees or delays. We can provide the necessary documentation.

      Warranty & Buyer Protection

      For new, factory-sealed miners, the warranty is typically 12 months or 6 months, depending on the factory's policy, starting from the production date.

      The company is not responsible for issues resulting from failure to follow the provided instructions, specifications, or alterations to the product.

      For used mining machines, there is no warranty or after-sales service; however, before shipment, we will provide mining machine testing videos to ensure you understand its performance. Once you confirm acceptance, we will proceed with full communication and arrange shipment.

      Transportation and any other costs related to product returns are the responsibility of the purchaser.

      The repair period will depend on the nature of the issue.

      Review

      Reviews

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      In-stock miners will ship within 3 business days. For bulk orders, please allow an additional 1-2 days via DHL Express, UPS, FedEx, or TNT.

      Pre-order miner delivery times depend on the factory schedule. Estimated delivery dates are provided on the order page, but delays may occur due to production issues.

      Shipments are processed on a first-paid, first-shipped basis. Once full payment is received, we aim to ship as quickly as possible. Payments via wire transfer (T/T) may take 3-7 business days to verify, while cryptocurrency payments typically take a few hours to 1 business day.

      International shipping usually takes 5-8 business days, with remote locations potentially requiring 8-10 days.

      *All sales are final and non-refundable. Please understand, this is an industry standard.

      All products listed on our website are priced in US Dollars.

      We accept payments via bank wire transfer or online cryptocurrency payment (BTC, ETH, KAS, USDT, USDC).

      If you prefer offline payment, you can contact our online customer service.

      Verify and only use the official collection accounts below:
      • USDT TRC20: Starts with TRMJuGXKD6, ends with wD1nQhrQx4
      • USDT ERC20: Starts with 0x74c8b301, ends with afAC3BE37f
      • Bank-USD: APEXTO COMPANY LIMITED / LEADERSPOWER TECHNOLOGY COMPANY LIMITED

      Note: Offline orders are only valid when placed within the social media group that includes our CFO, Lili Guo.
      (WeChat / Telegram / WhatsApp: +86 13713801796)

      Important: All cryptocurrency payments received on the website are automatically converted to USDT. If a product is out of stock, we will contact you for a refund. The refund will be based on the USD price at the time of your original order.

      We offer DDP (Delivery Duty Paid) shipping to some countries, including the United States, Canada, Dubai, and certain EU countries.

      If you require DDP shipping, please contact our customer service. For countries without DDP shipping or for standard shipping, we can help reduce taxes by providing a lower invoice value.

      Customs duties are not included in the total price. You will need to pay them once the goods arrive in your country. Simply contact your local logistics company to settle the fees. If needed, we can provide a commercial invoice with a declared value of your choice.

      Please notify us immediately if customs requests documents, as improper filing may lead to higher fees or delays. We can provide the necessary documentation.

      For new, factory-sealed miners, the warranty is typically 12 months or 6 months, depending on the factory's policy, starting from the production date.

      The company is not responsible for issues resulting from failure to follow the provided instructions, specifications, or alterations to the product.

      For used mining machines, there is no warranty or after-sales service; however, before shipment, we will provide mining machine testing videos to ensure you understand its performance. Once you confirm acceptance, we will proceed with full communication and arrange shipment.

      Transportation and any other costs related to product returns are the responsibility of the purchaser.

      The repair period will depend on the nature of the issue.

      Reviews

      There are no reviews yet.

      Be the first to review “Bitdeer SEALMINER A4 Ultra Hydro Bitcoin Miner”

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      Customer FAQs

      Can I get a discount?

      We offer holiday and special discounts periodically. Stay updated by following our website or joining our TG group (https://t.me/apextomining). We recommend joining our TG group, as special offers and discounts are typically announced there first.

      We also provide wholesale prices for Bulk orders. We offer tailored discounts and dedicated support for large-quantity purchases, helping you acquire mining equipment at the most competitive market prices. You can email us at info@apexto.com.cn

      Can I pick up the machine myself?

      Yes, we offer self-pickup options. We have warehouses in Hong Kong, and the United States, so you can choose the nearest location based on your needs. Alternatively, we can also ship the machine to your forwarder's address.

      Are miners purchased through you new?

      Yes, we only sell brand new, factory-sealed miners. Apexto Team purchases equipment directly from the factory, ensuring all products are new and unused.

      Typically, miners are shipped directly from the warehouse without opening the packaging. We only open the packaging for testing if requested by the customer before shipment.

      Is there a minimum order quantity for miners?

      No, there is no minimum order quantity. We cater to miners of all scales and understand that many investors prefer to start small before committing to larger investments.

      Can l visit your warehouse in person before placing an order?

      Yes, we welcome customers from all over the world to visit our warehouse. If it's not convenient for you, we can arrange an online video meeting or video call.

      Are offline transactions with Apexto safe?

      Absolutely—just follow these steps to keep your order secure:

      1. Authenticate Apexto staff identity first via our official verification page: https://apextomining.com/about-us/staff-authentication/

      2. Place your order only within the social media group with CFO Lili Guo (WeChat/TG/WhatsApp: +86 137 1380 1796).

      3. Use only our official collection accounts:
      USDT TRC20: Starting with "TRMJuGXKD6", and ending with “wD1nQhrQx4"
      USDT ERC20: Starting with "0x74c8b301", and ending with "afAC3BE37f"
      Bank-USD: APEXTO COMPANY LIMITED/LEADERSPOWER TECHNOLOGY COMPANY LIMITED

      Following these steps ensures your payment goes to the right place and your transaction stays fully protected.