SFP28 to SFP28 (25GbE) DAC Passive Copper Cable - Cisco CompatibleThis passive SFP28 direct attach data storage cable has a SFP28 (25GbE) connector on both ends. They are constructed using 30 to 26AWG shielded twin axial copper cable. It is typically used to directly attach switches servers in short distance point to point applications and provide 25 Gigabit Ethernet connectivity between devices with SFP+ SFP28 interfaces. The cable is also hot swappable which minimizes network downtimes, making upgrades quick and