Feature: 1. HIGH SPEED TRANSMISSION: Supports 2.5G and 1G Lite modes to meet your needs for high speed network transmission. 2. VERSATILE ADAPTERS: Suitable for multiple market segments and emerging applications such as desktops, workstations, servers and communicate platforms. 3. HIGH COMPATIBILITY: Compliant with multiple Ethernet specifications, such as IEEE802.3u, IEEE802.3ab and IEEE802.3bz, and supports multiple transmission media. 4. STABLE AND RELIABLE: Supports hardware ECC and hardware CRC functions to ensure error correction and checksum verification of data transmission. 5. COMPATIBLE SYSTEMS: The driver supports for WIN 7 8 10 11 and for Linux operating systems, applicable to a variety of computer platforms. Specification: Item Type: Mini PCIE Network Card Material: PCB Main Chipset: for Realtek RTL8125B Transmission Media: 1 x 2.5G RJ45 Port Transmission Rate: 2.5G, 1000Mbps, 100Mbps Network Mode: Support 2.5G and 1G Lite Mode Network Topology: Support IEEE1588v1, IEEE1588v2, IEEE80.2AS Time Synchronization Driver Support: for Windows 7 8 8.1 10 (32/64bit), for Windows Server 2008 2012 2016, for Linux Operating Temperature: 0‑60°C Storage Temperature: ‑20℃ to 80℃. Package List: 1 x Network Card1 x Screws1 x Screwdriver