4-Port USB 3.0 PCIe Expansion Card, PCI Express to USB3.0 Adapter Converter, Compatible with PCIe x1/x4/x8/x16 Slots for Desktop PC

This PCIe USB 3.0 expansion card equips your desktop with four extra external USB 3.0 ports, effectively solving the problem of insufficient rear USB interfaces on old motherboards. It supports simultaneous connection of USB flash drives, external hard drives, card readers, mice, keyboards and other peripherals without frequent plugging and unplugging.

Following USB 3.0 specification, it delivers a maximum 5Gbps transmission speed, 10x faster than USB 2.0, greatly shortening the waiting time for large file backups, video and photo transmission. The PCIe bus design is backward compatible with all PCIe x1, x4, x8, x16 expansion slots and will not occupy high-speed GPU lanes.

Equipped with independent power supply circuit and solid capacitors, the card ensures stable power output when multiple high-power USB devices work at the same time, preventing disconnection or slow speed caused by power shortage. Gold-plated USB port contacts resist oxidation and reduce signal loss for long-term stable use.

Comes with a standard full-height metal baffle for secure installation inside PC cases. It supports hot plug and runs smoothly on mainstream Windows and Linux systems with simple driver installation if needed. Ideal for office computers, DIY workstations, design hosts and gaming PCs that require multiple USB peripherals.