2.5m (8.20ft) Arista Networks CAB-D-8S-400G-2.5M Compatible PAM4 QSFP-DD to 8 SFP56 DAC 50GBASE-CR 8x 50Gbps Passive Direct Attach Twinax Breakout Copper Cable Arista Networks CAB-D-8S-400G-2.5M compatible DAC is a passive 8x 50Gbps QSFP-DD to 8 SFP56 direct attach breakout cable for use in 50GBASE Ethernet network. QSFP-DD breakout DAC provides 8x 51.56Gb/s throughput for 2.5m interconnection with high speed twin-axial copper cable. This DAC is fully compliant with QSFP-DD/SFP56 Multi-Source Agreement (MSA), IEEE 802.3cd 50GBASE-CR and 50GAUI-1 standard. Its twin-axial copper cable’s wire gauge is 28AWG and pre-terminated with MSA compliant 76/20-pin edge type connectors. The breakout DAC cable splits 8 branches of 50Gbps PAM4 signals from QSFP-DD into SFP56. It also supports 8x 25Gbps NRZ fanout application. Standard length options cover from 1 meter to 2.5 meters. MSA memory map is accessible via 2-wire (TWI/I2C) interface. Our breakout DACs are factory pre-programmed for compatibility, perform alternatively to genuine Arista Networks CAB-D-8S-400G-2.5M direct attach cables. Feature Equivalent to Arista Networks CAB-D-8S-400G-2.5M in function Hot pluggable QSFP-DD to 8 SFP56 DAC breakout direct attach cable Split 400Gbps into 8 branches of 50Gbps Pre-terminated 28AWG twin-axial copper cable 53.125Gbps PAM4 50GAUI-1 electrical interface Minimum bending radius 39.5mm MSA memory accessible via 2-wire interface Single 3.3V power supply voltage Extremely low power consumption near 0W Ambient temperature range 0 to 70°C for commercial application Compliant with QSFP-DD MSA, CMIS, SFF-8402, SFF-8432, SFF-8419, SFF-8472 Compliant with IEEE 802.3cd 50GBASE-CR Compliant with RoHS, REACH, CE, FCC standards Application 50G Ethernet Data Center Specification Arista Networks Compatible P/N CAB-D-8S-400G-2.5M Topology QSFP-DD to 8 SFP56 Max Data Rate 8x 51.5625Gbps Cable Length 2.5m (8.20ft) Cable Type Twinax Wire Gauge 28AWG Jacket Meterial OFNR (PVC) Minimum Bend Radius 39.5mm Host FEC Support Modulation Format PAM4 Power Consumption 0W Commercial Temperature Range 0 to 70°C (32 to 158°F)
