Mellanox MCP7F00-A002R30N Compatible 2m (7ft) 100G QSFP28 to Four 25G SFP28 Copper Direct Attach Breakout Cable
Mellanox MCP7F00-A002R30N Compatible QSFP28 to SFP28 DAC Splitter Cable (2m) supports 100GbE to 4x25GbE and 40GbE to 4x10GbE data rate, which is hot-pluggable.
