These 10G Passive SFP+ Twinaxial Direct Attach Cables are designed to support connections for 10 Gbps Gigabit Ethernet or Gigabit Ethernet switches with 10 Gbps Gigabit Ethernet uplink - much faster than SFP which only supports 2.5 Gbps Gigabit Ethernet.
D-Link - Commutateur DEM-CB300S xStack