2m (6.56ft) Cisco QDD-400-CU2M Compatible 400G QSFP-DD PAM4 Passive Direct Attach Twinax Copper Cable

2m (6.56ft) Cisco QDD-400-CU2M Compatible 400G QSFP-DD PAM4 Passive Direct Attach Twinax Copper Cable

Cisco QDD-400-CU2M compatible DAC is a passive 400Gbps QSFP-DD to QSFP-DD direct attach cable for use in 400GBASE Ethernet. QSFP-DD DAC provides 400Gb/s throughput for 2m interconnection with high speed twin-axial copper cable. Standard length options cover from 0.5 meters to 3 meters. The QSFP-DD DAC cable implements 8 independent 50 Gbps PAM4 transmit and receive signal channels in each differential pair for an aggregate 400 Gbps data rate. It also supports 8 channels 25 Gbps NRZ signals for 200 Gbps interconnection. This DAC is fully compliant with QSFP-DD Multi-Source Agreement (MSA), IEEE 802.3cd 400GBASE-CR8 and 400GAUI-8 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 DACs are factory pre-programmed for compatibility, perform identically to original Cisco QDD-400-CU2M direct attach cables.

Feature

• Equivalent to Cisco QDD-400-CU2M in function
• Hot Pluggable QSFP-DD to QSFP-DD Topology
• Aggregate data rate up to 400Gbps
• Pre-terminated 28AWG twin-axial copper cable
• 8x 53.125Gbps PAM4 retimed 400GUAI-8 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
• Compliant with IEEE 802.3cd 400GBASE-CR8
• Compliant with IEEE 802.3bj 200GBASE-CR8
• Compliant with RoHS, REACH, CE, FCC standards

Application

• 400G Ethernet
• Data Center

Specification