2.5m (8.20ft) Arista Networks CAB-D-8S-400G-2.5M Compatible 400G QSFP-DD to 8x50G SFP56 PAM4 Passive Direct Attach Twinax Breakout Copper Cable

2.5m (8.20ft) Arista Networks CAB-D-8S-400G-2.5M Compatible 400G QSFP-DD to 8x50G SFP56 PAM4 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 100GBASE Ethernet. QSFP-DD breakout DAC provides 8x 50Gb/s throughput for 2.5m interconnection with high speed twin-axial copper cable. Standard length options cover from 1 meter to 2.5 meters. The breakout DAC cable splits 8x 50 Gbps PAM4 signals from QSFP-DD into SFP56. It also supports 8x 25 Gbps NRZ fanout application. This DAC is fully compliant with QSFP-DD Multi-Source Agreement (MSA), IEEE 802.3cd 50GBASE-CR and 50GAUI-1 standard. The twin-axial copper cable's wire gauge is 28AWG and pre-terminated with MSA compliant 76-pin edge type connectors. MSA memory map are accessible via 2-wire Interface (TWI/I2C). Our breakout DACs are factory pre-programmed for compatibility, perform identically to original 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 Topology
• Split 400Gbps into 8 channels of 50Gbps
• Pre-terminated 28AWG twin-axial copper cable
• 8x 53.125Gbps PAM4 retimed 400GUAI-8/50GAUI 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, 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