Overview PCIe To 4-Ch USB 3.2 Gen1 Board (C) For Raspberry Pi 5. Extending 4x USB 3.2 Gen1 Ports, up to 500MB/s transmission speed theoretically. Enjoy stable and high-speed file transmission. Package include 1. PCIe TO USB 3.2 Gen1 Board (C) x1 2. Transparent acrylic mounting plate x1 3. 16PIN PCIe cable x1 4. PH 2.0 3PIN cable x1 5. Standoff pack x1