What is 400G Ethernet？

NVIDIA/Mellanox MMA4Z00-NS (980-9I510-00NS00) Compatible 800G 2xSR4 OSFP IHS/Finned Top 8x100G PAM4 Broadcom DSP & Broadcom VCSEL 850nm 50m MMF DOM Dual MPO-12/APC InfiniBand NDR Optical Transceiver Module

NVIDIA/Mellanox MMA4Z00-NS400 (980-9I51S-00NS00) Compatible 400G SR4 OSFP RHS/Flat Top 4x100G PAM4 Broadcom DSP & Broadcom VCSEL 850nm 50m MMF DOM MPO-12/APC InfiniBand NDR Optical Transceiver Module

3m (10ft) NVIDIA/Mellanox MFA7U10-H003 (980‑9I41X‑00H003) Compatible 400G AOC OSFP IHS/Finned Top 8x50G PAM4 to 2x200G QSFP56 4x50G PAM4 InfiniBand HDR Active Optical Splitter Cable

2m (7ft) NVIDIA/Mellanox MCP7Y60-H002 (980-9I46L-00H002) Compatible 400G DAC OSFP IHS/Finned Top 8x50G PAM4 to 2x200G QSFP56 4x50G PAM4 InfiniBand HDR Passive Direct Attach Copper Splitter Cable

NVIDIA/Mellanox MMS4X00-NS400 (980-9I31N-00NM00) Compatible 400G DR4 OSFP RHS/Flat Top 4x100G PAM4 1310nm 100m SMF DOM MPO-12/APC InfiniBand NDR Optical Transceiver Module

NVIDIA/Mellanox MMS4A00-XM/MMS4C10-XM (980-9IAH1-00XM00/980-9IAU0-00XM01) Compatible 1.6T 2xDR4 OSFP224 IHS/Closed Finned Top 8x200G PAM4 Broadcom 3nm DSP (Sian3 | BCM83628) 1310nm 500m SMF DOM Dual MPO-12/APC InfiniBand XDR Optical Transceiver Module for Quantum-X800 Air-Cooled Switches

N9200-64DC, 64x 400G QSFP-DD, Broadcom Tomahawk 4, Enterprise SONiC by NADDOD, High-Performance, Low-Latency, AI Fabric-Supported AI Data Center Switch

Cisco Compatible 400GBASE-2xSR4 OSFP IHS/Finned Top 8x50G PAM4 850nm 100m MMF DOM Dual MPO-12/APC Optical Transceiver Module

Arista Compatible 400GBASE-2xSR4 OSFP IHS/Finned Top 8x50G PAM4 850nm 100m MMF DOM Dual MPO-12/APC Optical Transceiver Module

NVIDIA/Mellanox Compatible 400G 2xSR4 OSFP RHS/Flat Top 8x50G PAM4 850nm 50m MMF DOM Dual MPO-12/APC InfiniBand NDR Optical Transceiver Module