Server and rack water cooling is a different problem to a desktop loop. Space is measured in rack units, the heat load is continuous rather than bursty, and a loop that fails sits in a chassis with other hardware around it. This section gathers the parts built for that job.
On the cooling side that means CPU blocks and heatsinks for server sockets such as AMD SP3, SP5 and SP6 and Intel LGA 3647, 4189 and 4677, rack-format pumps and reservoirs in 2U and 4U, and external radiators including the Watercool MO-RA IV and Alphacool SuperNova that move heat away from the rack rather than recirculating it.
Quick disconnects earn their keep here. Couplings from Alphacool, Koolance and Barrow are listed in G1/4 and push-in formats, with the Koolance QD3 sets using a no-spill design, alongside EPDM and TPV tubing for loops that run for years rather than months.
If you are cooling accelerators rather than CPUs, the GPU and AI section covers blocks for RTX 50 series cards and for PCIe accelerators including H100, H200 NVL and A100. Socket support, rack height and fitting threads vary between platforms, so check the compatibility listed on each product before ordering.
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