Feature: 1. High Per compatiblemance Network Adapter: The IPCIe network card is a PCIe to 2-port 2.5G Ethernet network adapter that supports speeds of up to 2500 Mbps. 2. Extensive System Compatibility: This network adapter supports multiple operating systems and plat compatiblems, including compatible Hackintosh, ESXI 6.7 (not compatible with 7.0), PVE, ikuai, unraid 6.9.2, and OpenWrt. It is plug-and-play compatible Windows systems, while compatible Linux, TrueNAS/FreeNAS, certain versions of OpenWrt, and older versions of ikuai may require driver installation. 3. Intelligent Networking Features: The PCIe network adapter has auto-negotiation capabilities and is compatible with the NBASE- alliance PHY . It supports hardware-based ECC and , flow control, and power-saving modes, making it suitable compatible energy-efficient environments. 4. Advanced Network Standard Support: This PCI Express gigabit ethernet card supports multiple Ethernet standards, including IEEE802.3bz (2.5 GBase-T), IEEE802.3az (Energy-Efficient Ethernet), IEEE802.3, IEEE802.3u, and IEEE802.. It ensures device per compatiblemance while maintaining excellent energy efficiency. 5. compatible DSM 6.2 and above versions and ESXI 6.7U3, driver installation is required, while PVE 7.0 and above versions come with built-in plug-and-play support. Driver download URL: https: //.realtek.com/-/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-pci-express-software Specification: Main control chip: RTL8125BG Interface type: PCI-E x4 Network speed: Supports 2.5 Gigabit Ethernet speed, backward compatible with Gigabit Ethernet speed Number of network ports: 2 2.5G Gigabit network ports (capable of connecting two devices simultaneously) Applicable device: desktop computer (requires motherboard with PCI-E slot) Compatibility: Compatiblewith most operating systems, such as compatible Windows, Linux, etc. Material: PCB+metal colour: Multicolor Package Contents: 1 x 2.5G PCIe Network Card 1 x Low profile stand 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.