Training clusters are all-to-all, not client-server. Port counts per rack multiply, optics become the dominant interconnect cost, and thermal headroom becomes the binding constraint.
Built for the Networks You Operate
Count ports per GPU tray, not per server — that drives volume
Confirm switch line-card thermal headroom before choosing 800G-class optics
AOC is usually the cheapest option below 5 m inside a rack
Coding matters: fabric interoperability depends on EEPROM profiles
Not sure which module fits your link? Send us the topology and distances — we will return a matched part list.
Share your model list, target speeds or link distances. Our engineers respond with matched part numbers, lead time and pricing.
