2.5m (8.20ft) Generic QSFPDD-400G-DAC28-2M5 Compatible PAM4 QSFP-DD to QSFP-DD DAC 400GBASE-CR8 400Gbps Passive Direct Attach Twinax Copper Cable
$65.21
$118.68
2.5m (8.20ft) Generic QSFPDD-400G-DAC28-2M5 Compatible PAM4 QSFP-DD to QSFP-DD DAC 400GBASE-CR8 400Gbps Passive Direct Attach Twinax Copper Cable Dawnray’s QSFPDD-400G-DAC28-2M5 DAC is a passive 400Gbps QSFP-DD to QSFP-DD direct attach cable for use in 400GBASE Ethernet network. QSFP-DD DAC provides 425Gb/s throughput for 2.5m interconnection with high speed twin-axial copper cable. This DAC is fully compliant with QSFP-DD Multi-Source Agreement (MSA), IEEE 802.3cd 400GBASE-CR8 and 400GAUI-8 standard. Its twin-axial copper cable’s wire gauge is 28AWG and pre-terminated with MSA compliant 76-pin edge type connectors. The DAC cable implements 8 independent 53.125Gbps PAM4 transmit and receive signal channels in each differential pair for an aggregate 425Gbps data rate. It also supports 8 channels 25.78125Gbps NRZ signals for 206.25Gbps interconnection. Standard length options cover from 0.5 meters to 3 meters. MSA memory map is accessible via 2-wire (TWI/I2C) interface. Our DACs are factory pre-programmed for compatibility, perform alternatively to generic/MSA direct attach cables. Feature Hot pluggable QSFP-DD to QSFP-DD DAC direct attach cable Aggregate data rate up to 425Gbps Pre-terminated 28AWG twin-axial copper cable 8x 53.125Gbps PAM4 retimed 400GAUI-8 electrical interface Minimum bending radius 55mm 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 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 Part Number QSFPDD-400G-DAC28-2M5 Topology QSFP-DD to QSFP-DD Max Data Rate 425Gbps Cable Length 2.5m (8.20ft) Cable Type Twinax Wire Gauge 28AWG Jacket Meterial OFNR (PVC) Minimum Bend Radius 55mm Host FEC Support Modulation Format PAM4 Power Consumption 0W Commercial Temperature Range 0 to 70°C (32 to 158°F)
