1、5Gbps: The panel measures 3.5 inches and is used to expand the chassis on the optical unit, providing four external USB 3.0 SuperSpeed ports. SuperSpeed USB 3.0 supports data transfer speeds up to 5 Gbps (maximum) and is backward compatible with USB 2.0 1.1. 2、Anti-interference: The USB 3.0 high-speed cable conductor is shielded copper, and the 3-layer shielding improves the stability of data transfer. The transfer bandwidth is larger and more resistant to interference. High-frequency transfer is not affected by various electromagnetic interferences in the computer chassis. 3、Support for operating systems: Supports Windows XP 32/64, Windows 7 32/64, Windows 8, Windows 8.1, Windows 10, and other operating systems. 4、Simple and convenient: Requires a motherboard with a PCIE interface, no need to download any driver, no external power supply, built-in connection cable, connect to the interface can be used, supports hot swap. 5、Self-powered module: Self-powered module, no external power supply, fully solid capacitors. Each port has an independent interface protection. The front USB 3.0 expansion card leads directly from PCIE to the front of the chassis, and the PCIE interface is ultra-low 90 degrees. Product type: PCIE to USB 3.0 PC Front Panel Material: Iron Product size: Approximately 102 x 94 x 25.8mm / 4.0 x 3.7 x 1.0in Bus mode: PCIEx1 Interface (PCIE x1 x4 x8 x16 Compatible) Expansion interface: USB3.0x4 Installation position: Front diskette position Installation cable length: Approximately 60cm / 23.6in Transfer speed: USB 3.0 Super Acceleration (5Gbps) 1 x Front Panel 5 x Screws 1 x Screwdriver