Additional Details ------------------------------ Product description: The StarTech ST1000SPEX43 4-port PCIe Gigabit network adapter card offers 4-channel networking and a maximum throughput of up to 1000 Mbps in each direction. It features the Realtek RTL8111G chipset for reliable network connections to your server or computer. This adapter supports full-duplex flow control, auto negotiation with next-page capacity, up to 9K jumbo frame, IEEE 802.1Q VLAN tagging, IEEE 802.1P layer 2 priority encoding, wake-on-LAN and remote wake-up. It is great for many SMB and enterprise applications such as virtualized environments that require multiple NICs. . Network adapter card offers simultaneous access to multiple networks for desktop PC clients, servers and workstations. Dimensions: 0.7"H x 4.7"W x 5.4"D. Comes in yellow color. Interface/ports: one PCI express x four male, four RJ-45 female (external). Data transfer rate: 2000 Mbps (full duplex), Jumbo frame support: 9K max. Chipset ID: Realtek RTL8111G, Industry standards: Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab. Compatibility with Windows 10 (32/64), 8, 8.1, 7, Vista, XP, 2000, ME, 98SE, Windows Server 2012, 2003, Linux Kernel 2.4.x and up operating system. LED indicators: four link and four activity. System and cable requirements: Available PCI Express x4 or higher (x8, x16) slot. Temperature: 0 - 55 deg C (operating), -40 - 70 deg C (storage), Humidity: 5 - 95% RH. Contains one PCIe gigabit network card. Meets CE, FCC and RoHS certifications and standards. Weight: 3.5 oz. 2 years warranty.