400G QSFP-DD AOC (Active Optical Cable) assemblies are designed to support 400G Ethernet and InfiniBand, suitable for data center and HPC (High-Performance Computing) links up to 100m over multi-mode fiber with FEC. The 400G QSFP-DD AOC assemblies are compatible with IEEE 802.3cd 400GBASE-SR8 and IEEE 802.3cd 200GBASE-SR4. The module supports eight electrical interface lanes which operate in 50G PAM4 encoding mode resulting in 400G (8x50G) data rate. The 400GBASE-SR8 QSFP-DD AOC assemblies are used to connect multiple 400G signals from the server side (NICs) to the data center aggregation switch.

Key Features
Hot-pluggable QSFP-DD form factor full-duplex transceiver assembly
8-channels 850nm VCSEL array and PIN photo-detector array
Data rate up to 53.125Gbps (26.5625GBd PAM4) per channel
400GAUI-8 electrical interface
Internal CDR circuits on both receiver and transmitter channels
MMF cable with customizable length up to 70m (OM3) or 100m (OM4/OM5)
10W maximum power dissipation per 400G QSFP-DD SR8 module
Temperature range: 0 to 70°C
Single 3.3V power supply
Built-in digital diagnostic functionality
Protocols: IEEE 802.3cd, OIF-CEI-04.0, QSFP-DD MSA,QSFP-DD-CMIS-rev4p0
RoHS compliant

Application
400G Ethernet IEEE 802.3cd 400GBASE-SR8
2x200G Ethernet IEEE 802.3cd 200GBASE-SR4
InfiniBand HDR/HDR100
Data Center Intraconnection
High-Performance Computing