What is 400G Ethernet？

NVIDIA/Mellanox MMA4Z00-NS Broadcom DSP & Broadcom VCSEL Compatible 800G 2xSR4/SR8 OSFP PAM4 850nm 50m DOM Two MPO-12/APC InfiniBand NDR Transceiver Module for MMF (Finned Top)

NVIDIA/Mellanox MMA4Z00-NS400 Broadcom DSP & Broadcom VCSEL Compatible 400G SR4 OSFP PAM4 850nm 50m DOM Single MPO-12/APC InfiniBand NDR Transceiver Module for MMF (Flat Top)

NVIDIA/Mellanox MFA7U10-H003 Compatible AOC 3m (10ft) 400Gb/s OSFP to 2x200Gb/s QSFP56 InfiniBand HDR Active Optical Splitter Cable (Finned Top, 850nm, MMF, LSZH)

NVIDIA/Mellanox MCP7Y60-H002 Compatible DAC 2m (7ft) 400Gb/s OSFP (Finned Top) to 2x200Gb/s QSFP56 InfiniBand HDR Passive Copper Splitter Cable

NVIDIA/Mellanox MMS4X00-NS400 Compatible 400G DR4 OSFP PAM4 1310nm 100m DOM Single MPO-12/APC InfiniBand NDR Transceiver Module for SMF (Flat Top)

NVIDIA/Mellanox MMS4A00-XM (980-9IAH1-00XM00) Compatible 1.6T 2xDR4/DR8 OSFP224 IHS/Closed Finned Top PAM4 Broadcom 3nm DSP (Sian3 | BCM83628) 1310nm 500m SMF DOM Dual MPO-12/APC InfiniBand XDR Silicon Photonics Transceiver Module for Quantum-X800 Air-Cooled Switches

N9200-64DC, 64x400G QSFP-DD, Broadcom Tomahawk 4, Enterprise SONiC by NADDOD, High-Performance, Low-Latency, AI Fabric-Supported AI Data Center Switch

Cisco Compatible OSFP-400G-2xSR4 850nm 100m Dual MTP/MPO-12 APC MMF Finned Top Optical Transceiver Module

Arista Compatible OSFP-400G-2xSR4 850nm 100m Dual MTP/MPO-12 APC MMF Finned Top Optical Transceiver Module

NVIDIA/Mellanox Compatible 400G OSFP 2×SR4 850nm 50m Dual MTP/MPO-12 APC MMF InfiniBand HDR Finned Top Optical Transceiver Module