Two 10/100/1000Mbps compatible RJ-45 Ethernet ports Up to 9K Jumbo Frame support Compatible with PCI Express Base Specification 2.0 (backward compatible with 1.0a/1.1) Fully Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, and supports IEEE 802.1Q VLAN tagging, IEEE 802.1P Layer 2 Priority Encoding and IEEE 802.3x Full Duplex Flow Control Supports Microsoft NDIS5 Checksum Offload (IP, TCP, UDP) and Large send Offload Wake-on-LAN / Remote Wake-up support Configured with standard profile bracket, low profile/half-height bracket included Supports Pair Swap / Polarity / Skew Correction