Using the main control chip of NEC, the leader of the USB3.0 Association One of the few expansion cards on the market that can support the LINUX system No need for external power supply design, using 2 5A high-power DC-DC The expansion card uses 7 high-performance solid-state capacitors, which greatly ensures the stability of USB power supply The built-in USB is plugged in backwards and supports small chassis, so that USB devices can be built in<br><br>Product model:PCE4USB-RO5 Product interface:PCI-E 1X (supports 1X/4X/8X/16X slots) Output interface:Built-in double-layer 4-port USB-A5Gbps Product speed:5Gbps (measured fastest 350-400M/s) Support size:default full-height baffle Main control chip:RENESAS uPD720201 (for original-NEC) System support:WIN7 WIN10 WIN11 LINUX Note:The installation speed of the driver is slow for systems below WIN7. It is recommended to use systems above 10 Colour:As Shown Material:PCB<br><br>Package Contents: 1 * PCI-E Expansion Card<br><br>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.