Latency? Why, they will in LEO/MEO. Neglible.

Cooling? https://en.wikipedia.org/wiki/Liquid_droplet_radiator

https://spectrum.ieee.org/orbital-data-centers-heat

Combine with https://spectrum.ieee.org/microfluidics-cooling-ai-chips-cor...

Solved!

Maintenance? https://en.wikipedia.org/wiki/Planetes !