28-Slot 154kW Hydro Cooling Rack — Antminer S19/S21/S23 Hyd
Enterprise-grade platform, assembled and tested in the EU.
Overview
A 154 kW closed-loop hydro cooling cabinet built for high-density deployments. It houses up to 28 hydro-cooled units in a single frame, with an integrated coolant loop, distribution manifold and quick-connect fittings on every slot — so a full row can be brought online in hours rather than days.
The same platform serves two very different workloads. For miners it removes the heat of 28 hydro ASICs without the noise and airflow problems of fan-cooled halls. For AI operators it is one of the most cost-effective ways to cool dense GPU nodes: the thermal engineering is identical, but the price per kilowatt of dissipation is far below purpose-built datacenter CDUs.
Why teams choose this cabinet
- 154 kW in one frame — 28 slots, each with its own supply and return connection.
- Quiet by design — heat leaves through liquid, not through walls of fans, so ambient noise drops dramatically.
- Fast deployment — pre-plumbed manifold and quick-connects; no custom pipework per unit.
- Stable under sustained load — liquid holds temperatures flat, which protects boost clocks and hardware lifetime in 24/7 operation.
- Dual-purpose — equally suited to hydro ASICs and to liquid-cooled GPU/AI nodes.
Typical applications
- Hydro mining farms running Antminer S19 / S21 / S23 Hyd series
- High-density AI and HPC nodes where air cooling has hit its limit
- Heat-reuse projects — the warm return loop can feed building or process heating
- Sites where noise or airflow constraints rule out conventional cooling
What you get from Kentino
We supply, configure and support the cabinet as part of a complete deployment: layout planning, power and coolant sizing, EU-based logistics and warranty. If you are pairing it with GPU servers rather than ASICs, our engineers will confirm compatibility and specify the loop before you order.
Lead time and freight are quoted per project — this item ships as heavy freight. Contact us for a delivery estimate to your site.
The questions buyers ask us most often before ordering a server.
How long does it take?
Machines built from components we hold ship quickly; anything requiring a specific GPU generation depends on supply. We give you a date before you pay, and if it moves we tell you rather than letting you find out.
Can the configuration be changed before you build it?
Almost always. GPUs, memory, storage and cooling are chosen per order, and the listed configuration is a starting point rather than a fixed package. If you need more VRAM, faster storage or a different cooling approach, say so before you order and we will quote the change.
Can I collect the server in person?
You can. Our warehouse is in Prague, and collection in person is welcome — most people who come use the visit to go through the machine with our engineer and ask the questions that are awkward over email. For orders within the Czech Republic we also try to deliver personally and walk you through the setup on site.
Can I talk to someone who actually understands the workload?
Yes. We have an engineer who works on AI systems specifically, not a general sales desk. If your question is about batch sizes, quantisation, interconnect or where your bottleneck will be, ask it — that conversation usually changes the configuration for the better.
Which model can I run on this configuration?
Yes. Every machine is assembled, burn-in tested and benchmarked on real AI workloads before it ships, and it leaves us with an LLM already installed and running. You plug it in, connect it to your network and start work — the only decision left is which project it runs first.
How do you test a server before shipping?
We run it against actual AI workloads rather than synthetic scores: inference throughput, sustained load behaviour and thermals under continuous operation. You get the benchmark results with the machine, so the performance you were promised is the performance you can verify on day one.
Is the server ready to run when it arrives?
Yes. Every machine is assembled, burn-in tested and benchmarked on real AI workloads before it ships, and it leaves us with an LLM already installed and running. You plug it in, connect it to your network and start work — the only decision left is which project it runs first.
Ships from our EU warehouse. Heavy items may require freight arrangement — contact us for a shipping quote and lead time. 2-year limited warranty with advanced RMA support; extended warranty available.
Not exactly what you need?
Tell us your workload and we'll spec this platform around it — GPUs, memory, storage and cooling matched to what you actually run.