Feature: 1. Ethernet Specification: This Ethernet network card complies with the 10/100Mbps Ethernet IEEE802.3u specification, IEEE802.3ab 1000Mbps Ethernet specification and IEEE802.3bz 2500Mbps Ethernet specification. 2. Fast Transmission: This gigabit Ethernet card provides high speed transmission via CAT5e UTP cable or CAT3 UTP (10Mbps only) cable. 3. 2.5G Network Port: This PCIe Ethernet card adopts 2.5G network port with integrated 10/100/1000M/2.5G transceiver, supports 2.5G and 1G Lite, 100M mode. 4. Full Duplex Flow Control: This Ethernet LAN card supports full duplex flow control (IEEE802.3x), jumbo frames to 16K bytes, Virtual Machine Queuing (VMQ), quad core receive, side scaling. 5. Auto Correction: This PCIe network adapter supports cross detection and auto correction. Support Hardware ECC, Hardware CRC (Cyclic Redundancy Check) functionality. Support PCI MSI (Message Signal Interrupt) and MSI X, ECMA 393 ProxZzzy standard for sleeping host. Support LAN wake up and "RealWow" technology (remote wake up). Specification: Item Type: Ethernet Network Card Material: Printed Circuit Board Main Chipset: For Realtek RTL8125B Bus Type:PCIe x1 2.5Gbps/5.0Gbps, Revised V2.1 Transmission Medium: 4 X 2.5G RJ45 Port Transmission Rate: 2.5G/1000/100Mbps Network Mode: Supports 2.5G and 1G Lite Mode Network Topology: Supports IEEE1588v1, IEEE1588v2, IEEE80.2AS Time Synchronization IEEE802.1Qav: Support IEEE802.1Qav Credit Based Shaping Algorithm IEEE802.1P: Support IEEE802.1P Second Layer Priority Coding IEEE802.1Q VLAN: Support IEEE802.1Q VLAN Marking IEEE802.3az 2010: Support IEEE802.3az 2010 Flow Control: Support Full Duplex Flow Control IEEE802.3x. Package List: 1 x Ethernet Network Card1 x Short Baffle1 x CD