Mellanox CX-DAC-4SFP25G-3M QSFP28/SFP28 Direct Attach Copper Breakout Cable
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- Overview
The CX-DAC-4SFP25G-3M is a 100G QSFP28 to 4x 25G SFP28 Passive Direct Attach Copper (DAC) Breakout Cable spanning a length of 3 metres (9.84 feet). Originally manufactured by Mellanox (now NVIDIA Networking), it is designed for cost-effective, short-range high-speed interconnections within data center racks.
Specifications
Model Number: CX-DAC-4SFP25G-3M
Brand: Mellanox
Alt Part Number(s): CX-DAC-4SFP25G-3M
Product Type: Direct Attach Copper Breakout Cable
Technical Description
Brand: Mellanox
Model: CX-DAC-4SFP25G-3M
Topology: 1 × QSFP28 → 4 × SFP28
Aggregate Speed: 100GbE
Data Rate: 100 Gbps total
Per-Lane Speed: 4 × 25GbE
Connector End 1: 1x QSFP28 (100G)
Connector End 2: 4x SFP28 (25G each)
Wire Gauge: Typically 30AWG or 28AWG
Power Consumption: 0W (Passive, requires no system power to operate)
Standards Compliance: IEEE 802.3bj, SFF-8402, and SFF-8665
Cable Length: 3 m (9.84 ft)
Signaling: 4 × 25.78125 Gbps NRZ
Standards: IEEE 802.3by 25GBASE-CR
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