Optimized for high-speed networking, this PCIe 3.1 network card features a quad-port RJ45 interface, supporting speeds up to 2.5Gbps. Compatible with PCIe x4, x8, and x16 slots, it's ideal for office PCs and servers needing robust connectivity. Equipped with four Intel I226 (SRKTU) chips and a PLX bridge, this network card ensures reliable and efficient data transfer. It supports a wide range of operating systems including Windows versions from ME to 11, various Linux distributions, and VMWare. This network controller card adheres to multiple IEEE standards, including 802.3 for Ethernet interfaces up to 2.5Gb/s, 802.3x and 802.3z for flow control, and 802.3az for energy efficiency, ensuring broad compatibility and optimal network performance. Advanced features such as Wake-On-Lan, TCP/UDP and IPv4 checksum offloading, and support for jumbo frames up to 9.5KB enhance its functionality. It's also equipped for time-sensitive networking with IEEE 1588 protocol and 802.1AS support. Designed for versatility and performance, the card includes both high and low profile brackets, making it suitable for different case sizes. It also supports automatic MDI/MDI-X crossover, relieving the need for crossover cables in network setups. Material: Metal + Plastic Color: As Shown The appearance and color of different production batches may be different but will not affect the use Package Contents: 1 x network card 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.