At Six Five Summit 2026, Marvell executives said inference models drove KV cache to expand roughly 10x in nine months, pushing copper interconnect to performance limits and making optical interconnect and memory expansion core variables for compute scaling. Marvell is advancing NPO and CPO paths, analog SerDes can cut power by ~4x, and it introduced a photonic fabric memory device with a 32TB external memory pool; CXL products have seen considerable demand.