Features: brand new and high quality Chip: RTL 8125GBIntegrated 10M BASE-T and 100/1000M/2.5G BASE-T 802.3 compatible transceiver Supports 2.5G Lite (1G data rate) mode Auto-Negotiation with Extended Next Page capability (XNP) Compatible with NBASE-TTM Alliance PHY Specification Supports PCI Express 2.1 Supports pair swap/polarity/skew correction Crossover Detection & Auto-Correction. Supports 1-Lane 2.5/5Gbps PCI Express Bus. Support WiFi reception, AP hotspot transmission. Supports hardware ECC (Error Correction Code) function. Supports hardware CRC (Cyclic Redundancy Check) function. Transmit/Receive on-chip buffer support. Supports PCI MSI (Message Signaled Interrupt) and MSI-X. Supports power down/link down power saving/PHY disable mode. Supports ECMA-393 ProxZzzy Standard for sleeping hosts. Supports LTR (Latency Tolerance Reporting). Wake-On-LAN and RealWoW! Technology (remote wake-up) support. Supports 32-set 128-byte Wake-Up Frame pattern exact matching. Supports Microsoft WPI (Wake Packet Indication). Supports PCIe L1 substate L1.1and L1.2. Supports jumbo frame to 16K bytes. Supports Full Duplex flow control (IEEE 802.3x). Specifications: Model: SU-LE8105 Main control: RTL8125BG, intel1225V (optional) Bus interface: PCI-E X1 (compatible with X1/X4/X8/16) Extension interface: RJ45 Interface speed: 2.5Gbps Transmission rate: 100/1000/2500Mbps Compatible system: Windows/Linux/ESXi/ROS Package Includes: 1 x Gigabit network card 1 x Low-profile bracket note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.