SM-LG8125B-BT MiniPCIE RTL8125B 2.5G Dual Copper Port Multi-Gigabit Network Adapter. Combines a quad-speed IEEE802.3-compliant media access controller with a quad-speed Ethernet transceiver, compliant with 10/100Mbps Ethernet IEEE802.3u specification, IEEE802. 1000Mbps Ethernet specification, and IEEE802.3bz 2500Mbps Ethernet specification. It also provides high-speed transmission over CAT5e UTP cable or CAT3 UTP (10Mbps only) cable. It is suitable for multiple market segments and emerging applications such as desktops, workstations, servers, communication platforms, and embedded applications. Made of high-quality materials. Bus type:MiniPCIE Transmission medium:2 x 2.5G RJ45 ports Transmission rate:2.5G/1000/100/10Mbps Network mode:Support 2.5G and 1G Lite mode Network topology: Support IEEE1588v1, IEEE1588v2, IEEE80.2AS time synchronization Support IEEE802.1Qav credit-based shaping algorithm Support IEEE802.1P layer 2 priority encoding Support IEEE802.1Q VLAN tagging Support IEEE802.3az-2010 Support IEEE802.3bz-2016 (NGBASET) Support full-duplex flow control (IEEE802.3x) Functional features: Auto-negotiation with extended next page function Support for exchange/sex/skew correction Crossover detection and automatic correction Supports hardware ECC (Error Correction Code), hardware (Cyclic Redundancy Check) functions Supports PCI (Message Signaled Interrupt) and -X Supports ECMA-393 ProxZzzy standard for sleeping hosts Supports Wake-on-LAN and "RealWow!" technology (remote wake-up) Colour:As Shown Material:PCB Package Contents: 1 * Minipcie Rtl8125b-Main Card 1 * Rj45 Terminal Board 1 * FPC Flexible Network Cable 1 * Short Iron Piece 1 * CD-Driver Only the above package content, other products are not included. Note: Light reflection 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.