Small PCIE to 19PIN USB3.0 Expansion Card Function and purpose Converts a small PCIE slot into a 19pin USB 3.0 internal header, providing USB 3.0 connectivity from compact systems. Compatibility Suitable for industrial control motherboards that use small PCIE ports; broad applicability to systems that lack onboard USB 3.0 header expansion. Whitelist hardware mechanism The brand has added a whitelist hardware mechanism. Performance The fast expansion speed depends on the PCIe version: around 140M/S on PCIE1.0, and over 300Mbps on PCIE2.0. Design and form factor Compact expansion solution designed for small PCIE slots, connects to a 19pin USB 3.0 header. Use scenarios Retrofit industrial controllers or compact PCs to add USB 3.0 connectivity for external drives, peripherals, or debugging tools. Deploy in small form factor systems (industrial mini PCs or thin clients) to enable USB 3.0 headers where none exist. Use in lab or development environments to test USB 3.0 devices on systems with limited PCIe slots and USB port restrictions.