AI data center optical transceivers for GPU clusters: 800G SR8, DR8 and 2xFR4, LPO latency and power gains, InfiniBand vs RoCEv2 needs and burn-in QA.
OSFP vs QSFP-DD for 800G: integrated heat sink vs cage cooling, 32 vs 36 ports per 1U, QSFP28 compatibility and 1.6T roadmap, plus a selection matrix.