The generic compatible 25G SFP28 Passive Direct Attach Copper Twinax Cable is designed for use in 25GBASE Ethernet in short-distance connectivity within a rack or between adjacent racks in data centers. The generic compatible 25G SFP28 Passive Direct Attach Copper Twinax Cable is designed for use in 25GBASE Ethernet in short-distance connectivity within a rack or between adjacent racks in data centers. The Passive Direct Attach Cable offers a 25GBASE Ethernet network connection with low latency, and low power consumption.Generic compatible, not compatible with Aruba/HPE & Cisco without CLI command to allow 3rd party SFP transceivers.