This is a general-purpose 2.5Gbps Ethernet PCI card. Users can switch to a standard RJ45 network port through the PCIE x1, x4, x8 or x16 slot of the host computer. It is mainly aimed at improving the speed of users in gaming games. designed for your needs.Driver Download: https://.realtek.com/-/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-pci--softwareIntegrated 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 Page capability (XNP).Compatible with NBASE-TTM PHY Specification. Supports PCI 2.1. Supports pair swap/polarity/skew correction. Crossover Detection & Auto-Correction.Supports 1- 2.5/5Gbps PCI BusSupports hardware ECC (Error Correction Code) functionSupports hardware (Cyclic Redundancy Check) functionTransmit/Receive on-chip buffer supportSupports PCI (Message Signaled Interrupt) and -XSupports down/link down saving/PHY disable modeSupports ECMA-393 ProxZzzy Standard for sleeping hostsSupports LTR (Latency Tolerance Reporting)Wake-On-LAN and 'RealWoW ' Technology (remote wake-up) supportSupports 32-set 128-byte Wake-Up Frame pattern exact matchingSupports WPI (Wake Packet Indication)Supports PCIe L1 substate L1.1and L1.2Compatible with IEEE 802.3, IEEE 802.3u, IEEE 802.Supports IEEE 1588v1, IEEE 1588v2, IEEE 802.1AS time synchronizationSupports IEEE 802.1Qav credit-based shaper algorithmSupports IEEE 802.1P Layer 2 Priority EncodingSupports IEEE 802.1Q VLAN taggingSupports IEEE 802.1ad Double VLANSupports IEEE 802.3az (Energy Efficient Ethernet)Supports IEEE 802.3bz (2.5GBase-T)Supports Full Duplexflow control (IEEE 802.3x)Supports jumbo frame to 16K bytesSystem RequirementsWindows OSLinux, for OS and DOSMaterial: PCB+Metalcolour: black + silverPackage Contents:1 x PCI- to 10/100/1000M/2.5G Ethernet Card1 x Low-profile bracketOnly 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.