Dell Poweredge M1000E Mellanox Connect X-2 Dual-port Mezzanine card X24WC CN-0X24WCSpecifcations:Size: 88.00mm x 83.99mmInfiniBand: IBTA v1.2, Auto-negotiation 10, 20, or 40Gb/s per port.Ethernet: IEEE Std 802.3ae 10 Gigabit Ethernet. IEEE Std 802.3ap Backplanes, including FEC. Multicast and Jumbo Frame Support.QoS: 8 InfiniBand Virtual Lanes for each portRDMA Support: Yes, All PortsData Rate: QDRPCI Express: Base 2.0 compliant, backwards compatible with 1.1Compatible with Dell PowerEdge M610, M610X, M710, M710HD & M910 Blade ServersPart number: CN-0X24WC