CoolIT and Stäubli Bring Liquid Cooling to Pluggable OSFP Optics

What the connector has to do

The Mini QD is designed for leak-free serviceability, according to eeNews Europe, so a module can be installed, removed or replaced without compromising the liquid loop. For operators, that is the condition for putting liquid next to hot-swappable parts: a switch tray with plumbed optics still has to be serviced like one with air-cooled optics.

The report also says the pairing supports work toward standardised fluid interfaces, which would let optical modules from different suppliers share the same liquid connection. eeNews Europe ties the effort to network bandwidth heading toward 3.2 Tb/s and beyond.

"As networking optics become part of the liquid-cooling ecosystem, CoolIT's coldplate expertise helps bring direct liquid cooling into traditionally air-cooled components," said Brad Zakaib, CEO of CoolIT, an Ecolab company.

Why it matters for facility cooling

For data-center designers, the consequence is on the plumbing side. If optics join the liquid loop, the share of rack heat that air has to remove shrinks further, and every switch tray gains more connection points that must be leak-tested and maintained. A faceplate with dozens of liquid ports is a different service job from one with fans. On the optics side of the same bandwidth race, see Voltgrid's report on Cisco and NVIDIA's USFP optics.

What is not confirmed yet

The eeNews Europe report gives no heat-removal figure in watts per module, no coolant flow rate or temperature, and no availability date, price or named customer. It does not say which OSFP modules or which switch or router systems the cold plate is built for. Those details would show how much heat the optics hand to the liquid loop and whether the parts can be bought. Voltgrid has not seen a CoolIT or Stäubli release with those specifications.