This network server card has 4 ports and is designed to automatically scale with the growing networks. Features: Equipped with RTL8111G chip, thenetwork server card has stable performance. Universally compatible with most operation systems, including XP, WIN7, WIN8, WIN8.1, WIN10,LINUX. With profile bracket and low profile bracket, it is easy to install for both large and small computer cases. Specification: Item size: 12 * 10 * 6.85cm / 4.72 * 3.94 * 2.70in(L * W * H) Item weight: Approx.95g / 3.35oz Package size: 13.7 * 13.7 * 2.5cm / 5.39 * 5.39 * 0.98in(L * W * H) Package weight: 97g / 3.42oz Package list: 1 * Network Card 1 * Low Profile Bracket 2 * Screw