
12kW Dual-ASIC Water Cooling Radiator – 26°C Standard Version
In stock
$275.00
This 4-unit 26kW water cooler supports up to 4 Antminer hydro miners, delivering compact and efficient water cooling in a space-saving solution ideal for home mining setups.
$1,450.00 – $2,150.00
In stock
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.
Order 2 or more machines to save on shipping costs! Contact our sales team now to secure the best rates.
CONTAINER CAPACITY
ASIC MINERS
Housed at full load
TOTAL POWER
Continuous electrical load
FORM FACTOR
Standard
COOLING
Thermal management
POWER INPUT
380V–415V AC 50/60Hz
AVAILABILITY
In stock, ready to ship • DDP Sea Shipping Available

257 Th/s · 20.6 J/Th
4 Slots
Full‑load: $37.88/day

198 Th/s · 27.5 J/Th
4 Slots
Full‑load: $29.20/day

293 Th/s · 19 J/Th
4 Slots
Full‑load: $43.20/day

251 Th/s · 22 J/Th
4 Slots
Full‑load: $37.00/day

335 Th/s · 16 J/Th
4 Slots
Full‑load: $49.40/day

473 Th/s · 12 J/Th
4 Slots
Full‑load: $69.76/day

500 Th/s · 11 J/Th
4 Slots
Full‑load: $73.72/day

358 Th/s · 15 J/Th
4 Slots
Full‑load: $52.80/day

310 Th/s · 17 J/Th
4 Slots
Full‑load: $45.72/day

430 Th/s · 13 J/Th
4 Slots
Full‑load: $63.40/day

495 Th/s · 12 J/Th
4 Slots
Full‑load: $73.00/day

580 Th/s · 9.5 J/Th
4 Slots
Full‑load: $85.52/day
The 4-Slot 26kW Antminer Hydro Cooling Rack is designed for miners who want to start with a compact hydro cooling setup without committing to a large installation. Supporting up to 4 Antminer hydro miners, it provides dedicated space for the machines while keeping the cooling system organized in a small footprint.
With 26kW of cooling capacity, the rack is suitable for home workshops, small mining rooms, testing environments, and other sites where available space is limited. Its compact format also makes it easier to plan around existing power, ventilation, and installation conditions.
Rather than building a cooling system around more capacity than you currently need, the 4-slot rack provides a practical starting point that can match a smaller mining operation. It is a straightforward option for getting a few Antminer hydro miners running with a dedicated cooling setup.
Core Advantages

The cabinet is built in two levels, with four Antminer hydro units positioned in the upper section and the dry cooler integrated directly underneath. This vertical layout combines mining and heat dissipation in one compact structure, making full use of the available floor space.

Four dedicated positions are designed for Antminer hydro units, with the power and water connections arranged around each slot. The fixed layout keeps the miners properly positioned and makes installation more straightforward.

A digital display and status indicators are built into the front panel, providing quick access to key electrical information. Voltage readings and system status can be checked directly from the outside without opening the cabinet.

The electrical section includes individual circuit breakers for each miner, providing separate branch protection across the four slots. A built-in fan speed controller also allows cooling airflow to be adjusted according to operating conditions.

A dedicated high-flow pump drives coolant through the four miner loops and sends the heated liquid to the dry cooler for heat dissipation. The pump is positioned on the cabinet side for direct access, keeping the circulation system independent from the main miner section.

The lower section houses a dedicated dry cooler designed to handle the system’s 26kW heat load. Built into the same frame as the miner cabinet, it provides a compact vertical cooling structure while keeping heat dissipation separate from the mining area.
Full Specifications
L:700mm、W:800mm、H:1390mm
L:1020mm、W:650mm、H:1350mm
210KG
| Model | AP-H4 | Installed capacity | 4 Seat |
| Heat Dissipation Capacity | 26 kW | Circulation Mode | Single Mode / Dual Mode |
| Coolant | Pure Water / Soft water + Antifreeze + Corrosion Inhibitor | Max Inlet/Outlet Temp | 40 / 50 °C |
| Fluid Flow Rate | 2 m³/h | Input /Output Voltage | 3 Phase 380-415V 50/60Hz |
| Ambient Temp | -25°C ~ 45°C | Design Pressure | 0.3 MPa |
| Cabinet Dimensions | 1,070mm(L) * 7,00mm(W) * 1,390mm(H) | Weight | 210 KG |
Complete product specifications, installation guide, and operational instructions.
Hydro cooling systems that double as flexible heating solutions—turning mining heat into efficient warmth anywhere it's needed.

We design and manufacture a complete range of hydro cooling solutions for every scale, from hydro cooling cabinets and containers to CDUs and dry coolers.
| ❄️ Cooling Capacity |
| ⚙️ Miner Slots |
| 📏 Dimensions (L × W × H) |
| 🏢 Application |
Compare

| 26 kW |
| 4 Slots |
| 1,070 × 7,00 × 1,390 mm |
| Compact Entry-Level Mining |

| 35 kW |
| 6 Slots |
| 8,00 × 8,00 × 1,450 mm |
| Standard Garage Operations |

| 50 kW |
| 9 Slots |
| 8,00 × 8,00 × 1,600 mm |
| Professional Home Setups |

| 70 kW |
| 12 Slots |
| 7,00 × 8,00 × 1,800 mm |
| High-Capacity Home Mining |
View All >>

Running a small-scale hashing station in an urban home office without any building modifications.
Noise Reduction
Heat Exported
Floor Space Used

Providing a dedicated, standalone hydro cooling environment for R&D and machine performance testing.
Construction Required
Setup Time
Operational Uptime
“
"We use several of these 26kW racks in our tech lab for testing new firmware and hardware. Since it’s a standalone unit, we didn't have to install any permanent water lines in our office. It keeps the test miners at a steady temperature and the digital voltage display makes it easy to monitor everything at a glance."
— Technical Lead, Seoul Testing Facility
"I needed a setup that wouldn't take up my entire balcony or storage room. This 4-slot unit is extremely compact because the cooler is built right into the base. It’s quiet enough for my apartment, and the vertical design keeps all the hoses tucked away. It was a very straightforward way to get my first few hydro miners running."
— Home Hobbyist, London Site
Global Deployment
Cumulative delivered cooling capacity
Serving Mining Sites
Countries and regions covered
Can this cooling system run four Antminer Hydro miners at the same time?
Yes. The system has 4 miner slots and supports compatible Antminer S19, S21, and S23 Hydro miners. The total power consumption of the installed miners should remain within the system's 26kW maximum load.
Is 26kW enough for four high-power Antminer Hydro miners?
It depends on the miner model and actual power consumption. For example, four Antminer S21 XP Hydro 473T miners consume about 22.7kW at their typical rated power, which is within the 26kW system capacity.*For higher-power, overclocked, or future Hydro models, check the combined miner power before installation.
Can I mix different Antminer Hydro models in the same cooling system?
Yes, compatible S19, S21, and S23 Hydro series miners can be used in the same system, provided their cooling connections and operating requirements are compatible and the combined power load does not exceed 26kW.
What power supply is required?
The standard system is designed for 3-phase 380V, 50Hz power.
Antminer Hydro miners also require three-phase power. If your site uses 400V, 415V, 480V, 60Hz, or residential 220–240V power, please confirm the electrical configuration before ordering rather than connecting the system directly.
Does the system require a separate dry cooler?
No. The cooling fans and heat-dissipation system are integrated directly into the cabinet, so no separate external dry cooler is required.
This all-in-one design simplifies installation and reduces the amount of external piping and cooling equipment needed on site.
Can the cooling system be installed outdoors?
Yes. The integrated system can be installed outdoors, provided there is sufficient ventilation and open space around the cabinet for proper airflow and heat dissipation.
Avoid placing the unit in enclosed or poorly ventilated areas, as restricted airflow can reduce cooling performance, especially during hot weather.
What coolant should I use, and does the system require regular maintenance?
Use suitable pure water, deionized water, or properly treated soft water with antifreeze and corrosion inhibitor according to the installation environment.
Regular maintenance mainly includes checking coolant quality and level, water flow, pumps, hoses, quick connectors, leaks, and keeping the dry cooler clean and unobstructed.
Can the heat from the miners be reused for home or pool heating?
Yes. A heat-recovery configuration is available.
With the appropriate circulation pump and heat exchanger, waste heat from the miners can be transferred to applications such as home heating, underfloor heating, swimming pools, greenhouses, or other hot-water heating systems.
Does the system require a separate dry cooler?
No. The cooling fans and heat-dissipation system are integrated directly into the cabinet, so no separate external dry cooler is required.
This all-in-one design simplifies installation and reduces the amount of external piping and cooling equipment needed on site.
CONTAINER CAPACITY
Standard
Thermal management
POWER INPUT
380V–415V AC 50/60Hz
AVAILABILITY
In stock, ready to ship • DDP Sea Shipping Available
Show 8 more models
The 4-Slot 26kW Antminer Hydro Cooling Rack is designed for miners who want to start with a compact hydro cooling setup without committing to a large installation. Supporting up to 4 Antminer hydro miners, it provides dedicated space for the machines while keeping the cooling system organized in a small footprint.
With 26kW of cooling capacity, the rack is suitable for home workshops, small mining rooms, testing environments, and other sites where available space is limited. Its compact format also makes it easier to plan around existing power, ventilation, and installation conditions.
Rather than building a cooling system around more capacity than you currently need, the 4-slot rack provides a practical starting point that can match a smaller mining operation. It is a straightforward option for getting a few Antminer hydro miners running with a dedicated cooling setup.
Core Advantages

The cabinet is built in two levels, with four Antminer hydro units positioned in the upper section and the dry cooler integrated directly underneath. This vertical layout combines mining and heat dissipation in one compact structure, making full use of the available floor space.

Four dedicated positions are designed for Antminer hydro units, with the power and water connections arranged around each slot. The fixed layout keeps the miners properly positioned and makes installation more straightforward.

A digital display and status indicators are built into the front panel, providing quick access to key electrical information. Voltage readings and system status can be checked directly from the outside without opening the cabinet.

The electrical section includes individual circuit breakers for each miner, providing separate branch protection across the four slots. A built-in fan speed controller also allows cooling airflow to be adjusted according to operating conditions.

A dedicated high-flow pump drives coolant through the four miner loops and sends the heated liquid to the dry cooler for heat dissipation. The pump is positioned on the cabinet side for direct access, keeping the circulation system independent from the main miner section.

The lower section houses a dedicated dry cooler designed to handle the system’s 26kW heat load. Built into the same frame as the miner cabinet, it provides a compact vertical cooling structure while keeping heat dissipation separate from the mining area.
Full Specifications
L:700mm、W:800mm、H:1390mm
L:1020mm、W:650mm、H:1350mm
210KG
| Model | AP-H4 | Installed capacity | 4 Seat |
| Heat Dissipation Capacity | 26 kW | Circulation Mode | Single Mode / Dual Mode |
| Coolant | Pure Water / Soft water + Antifreeze + Corrosion Inhibitor | Max Inlet/Outlet Temp | 40 / 50 °C |
| Fluid Flow Rate | 2 m³/h | Input /Output Voltage | 3 Phase 380-415V 50/60Hz |
| Ambient Temp | -25°C ~ 45°C | Design Pressure | 0.3 MPa |
| Cabinet Dimensions | 1,070mm(L) * 7,00mm(W) * 1,390mm(H) | Weight | 210 KG |
Complete product specifications, installation guide, and operational instructions.
Hydro cooling systems that double as flexible heating solutions—turning mining heat into efficient warmth anywhere it's needed.

We design and manufacture a complete range of hydro cooling solutions for every scale, from hydro cooling cabinets and containers to CDUs and dry coolers.
| ❄️ Cooling Capacity |
| ⚙️ Miner Slots |
| 📏 Dimensions (L × W × H) |
| 🏢 Application |
Compare

| 26 kW |
| 4 Slots |
| 1,070 × 7,00 × 1,390 mm |
| Compact Entry-Level Mining |

| 35 kW |
| 6 Slots |
| 8,00 × 8,00 × 1,450 mm |
| Standard Garage Operations |

| 50 kW |
| 9 Slots |
| 8,00 × 8,00 × 1,600 mm |
| Professional Home Setups |

| 70 kW |
| 12 Slots |
| 7,00 × 8,00 × 1,800 mm |
| High-Capacity Home Mining |
View All >>

Running a small-scale hashing station in an urban home office without any building modifications.
Noise Reduction
Heat Exported
Floor Space Used

Providing a dedicated, standalone hydro cooling environment for R&D and machine performance testing.
Construction Required
Setup Time
Operational Uptime
“
"We use several of these 26kW racks in our tech lab for testing new firmware and hardware. Since it’s a standalone unit, we didn't have to install any permanent water lines in our office. It keeps the test miners at a steady temperature and the digital voltage display makes it easy to monitor everything at a glance."
— Technical Lead, Seoul Testing Facility
"I needed a setup that wouldn't take up my entire balcony or storage room. This 4-slot unit is extremely compact because the cooler is built right into the base. It’s quiet enough for my apartment, and the vertical design keeps all the hoses tucked away. It was a very straightforward way to get my first few hydro miners running."
— Home Hobbyist, London Site
Cumulative delivered cooling capacity
Countries and regions covered
Yes. The system has 4 miner slots and supports compatible Antminer S19, S21, and S23 Hydro miners. The total power consumption of the installed miners should remain within the system's 26kW maximum load.
It depends on the miner model and actual power consumption. For example, four Antminer S21 XP Hydro 473T miners consume about 22.7kW at their typical rated power, which is within the 26kW system capacity.*For higher-power, overclocked, or future Hydro models, check the combined miner power before installation.
The standard system is designed for 3-phase 380V, 50Hz power.
Antminer Hydro miners also require three-phase power. If your site uses 400V, 415V, 480V, 60Hz, or residential 220–240V power, please confirm the electrical configuration before ordering rather than connecting the system directly.
No. The cooling fans and heat-dissipation system are integrated directly into the cabinet, so no separate external dry cooler is required.
This all-in-one design simplifies installation and reduces the amount of external piping and cooling equipment needed on site.
Yes. The integrated system can be installed outdoors, provided there is sufficient ventilation and open space around the cabinet for proper airflow and heat dissipation.
Avoid placing the unit in enclosed or poorly ventilated areas, as restricted airflow can reduce cooling performance, especially during hot weather.
Use suitable pure water, deionized water, or properly treated soft water with antifreeze and corrosion inhibitor according to the installation environment.
Regular maintenance mainly includes checking coolant quality and level, water flow, pumps, hoses, quick connectors, leaks, and keeping the dry cooler clean and unobstructed.
Yes. A heat-recovery configuration is available.
With the appropriate circulation pump and heat exchanger, waste heat from the miners can be transferred to applications such as home heating, underfloor heating, swimming pools, greenhouses, or other hot-water heating systems.
No. The cooling fans and heat-dissipation system are integrated directly into the cabinet, so no separate external dry cooler is required.
This all-in-one design simplifies installation and reduces the amount of external piping and cooling equipment needed on site.
Share your requirements below. Our consultants will contact you via WhatsApp or email within 24 hours with a custom-matched proposal.
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 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.
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.
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.
Faye was very kind and helpful, even with the time difference. She quickly cleared up my doubts about the L9 miner.
Date of experience : January 31, 2025Order arrived sooner than expected - great experience with Apexto Mining!
Date of experience : March 03, 2025Buying miners from Apexto for 5 years - trustworthy, professional, and delivers quality!
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