20Gbps (USB3.2 Gen 2X2): PCI-E card has a bandwidth of 20Gbps for fast data transfer. The actual speed of USB 3.2 on a single port and external drives is Perfect for file backup, video editing and data recovery Backwards compatible with USB 3.0 and USB 2.0 devices (Note: 3 devices connected to this expansion card are only compatible with 10G rates.) Good compatibility: Compatible slot: PCIe x4 (3.0), PCIe x8, PCIe x16, compatible with Windows 8/10 / Linux core, no driver required. (Windows 7 is not supported.) 15PIN POWER SUPPLY CONNECTOR POWERFUL: With the SATA 15PIN power supply backup interface, you can connect the computer's power cord to get a strong power supply capacity that is suitable for most enclosure power supplies. No more worrying about problems adjusting the power supply. The power supply is sufficient and stable. PCI-E to USB3.1: Add a USB 3.2 Gen 2X2 Type-C port (20Gbps) to your new PC or older desktop computer with PCIe equipment. Here you will find a cost-effective solution for adding 20Gbps connectivity to your computer. The card contains both standard and low profile mounts that can be installed on PCs and servers with form factor. colour: black Material: plastic+metal Package Contents: 2 x Expansion Card 2 x low profile holder 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.