This PCIe USB 3.0 controller board is the ideal solution for expanding your PC's internal connection capabilities. It allows you to add two 19 pin header connectors (USB 3.0 internal) directly to the motherboard via a PCI Express slot, allowing you to connect front panels, card readers or additional USB ports of the case that require the USB 3.0 standard. The controller guarantees a data transfer speed of up to 5 Gbps, ensuring high performance for heavy file transfer and use of external peripherals. Included in the package, you will also find a Low Profile bracket, which makes the card compatible with both standard (ATX) and compact systems (SFF - Small Form Factor). Attention: To ensure maximum power and stability of the signal on all doors, the card requires direct power via a 4 pin Molex connector. Main technical specifications Host interface: PCI Express (compatible with x1 slot, x4, x8, x16) Internal connectors : 2x USB 3.0 header to 19 Pin (total of 4 manageable USB 3.0 ports) Transfer speed : Up to 5 Gbps (SuperSpeed USB) Additional power : Requires Molex 4-pin connector (obligatory)