StarTech.com Dual Port Gigabit PCI Express Server Network Adapter Card - 1 Gbps PCIe NIC - Dual Port Server Adapter - 2 Port Ethernet Card Add dual Gigabit Ethernet ports to a client server or workstation through a PCI Express slot Dual Port Gigabit PCI Expres Server Network Adapter 1 Gbps Dual Port Network Card PCIe Gigabit NIC 2 Port Ethernet Card Protect critical networked systems with a redundant and independent Gigabit port Optimize network traffic with support for advanced features such as Jumbo Frames and VLAN tagging Maximize the networking efficiency of your virtualized server, with dedicated ports 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