This Dell Networking Cable, 100GbE QSFP28 to QSFP28, Passive Copper Direct Attach Cable is used to link your fiber networking devices for high-speed, long-distance connectivity. This 1 m cable features an QSFP28 connector at one end and QSFP28 connector at the other end. - Provides the necessary link between fiber networking devices for high-speed, long-distance connectivity - Features an QSFP28 connector at one end and QSFP28 connector at the other end - Measures 1 m in length Compatibility This product is compatible with the following systems: - Dell Networking S6100 - Dell Networking Z9100 - PowerEdge C6420 - PowerEdge R640 - PowerEdge R740 - PowerEdge R740XD - PowerEdge R940