The Dell 10 GbE dual Port Daughter Card provides x8 PCI Express 2.0 (5.0/2.5 Gbps) bus interface for communication with the host platform, conferment with the IEEE 802.3-2008 section 70 and 71 specification. It supports IEEE 802.1p priority queuing (traffic prioritizing) and quality of service levels, IEEE 802.1Q for virtual LAN identification and IEEE 802.3x (flow control). The IEEE 802.3u provides fast Ethernet.