1. SE-LG8125B-BT PCI Express RTL8125B 2.5G single electrical port network adapter, which combines a four-speed IEEE802.3 compatible media access controller with a four-speed Ethernet transceiver 2. Comply with 10/100Mbps Ethernet IEEE802.3u specification, IEEE802. 1000Mbps Ethernet specification and IEEE802.3bz 2500Mbps Ethernet specification 3. It also provides high-speed transmission through CAT5e UTP cable or CAT3 UTP (10Mbps only) cable. 4. It is suitable for multiple market segments and emerging applications, such as desktops, workstations, servers, communication platforms and embedded applications. 5. Portable operation, plug and play, very practical Product name: PCIe RTL8125B 2.5G single electrical port network card Compliant with PCI Express specification revision v2.1 Support 1- 2.5/5Gbps PCI Express bus Onboard single 2.5G network port, integrated 10/100/1000M/2.5G transceiver Auto-negotiation with extended next page function Support for exchange/sex/skew correction detection and automatic correction Support hardware ECC (error correction code), hardware (cyclic redundancy check) functions Support PCI (Message Signal Interrupt) and -X Support ECMA-393 ProxZzzy standard for sleeping host Support Wake-on-LAN and "RealWow!" technology (remote ) Support IEEE1588v1, IEEE1588v2, IEEE80.2AS time synchronization Supports shaping algorithm based on IEEE802.1Qav credit Support IEEE802.1P layer 2 priority coding Support IEEE802.1Q VLAN tag Support IEEE802.3az-2010 Support IEEE802.3bz-2016 (NGBASET) Support full duplex flow control (IEEE802.3x) Support jumbo frames to 16K bytes Support virtual machine queue (VMQ) Support quad-core receive-side zoom (RSS) System Requirements:Linux, Win 7/Win 8/Server 2008/Win 8.1/Server 2012/ Win 10 32/64bit One available PCI Express x1/x4/x8/x16 slot colour: black Material: PCB + metal Package Contents: 1 x PCIe RTL8125B 2.5G single electrical port network card 1 x Short bracket Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.