The SY-PEX24028 Dual Gigabit Port PCI-e x1 Network Card is fully compliant with Microsoft NDIS5, NDIS6 (IPv4, IPv6, TCP, UDP) Checksum and Segmentation Task-offload (Large send and Giant send) features, and supports IEEE 802 IP Layer 2 priority encoding and IEEE 802.1Q Virtual bridged Local Area Network (VLAN). The above features contribute to lowering CPU utilization, especially benefiting performance when in operation on a network server. Each port provides 10/100/1000 Mbps capable Ethernet, the 2-port Ethernet card supports full-duplex flow control for maximum data transfer speeds of up to 2000 Mbps.