1.USB 3.0 male connector, backward compatible with USB3.0.USB2.0,USB1.1 Standard 2.1 * USB3.0 port, theoretical transmission speed 5Gbps, backward compatible with USB2.0, USB1.1. USB downstream current 500MA Standard 3.2 * USB2.0 port, theoretical transmission speed 5Gbps, backward compatible with USB1.1. USB downstream current 500MA 4.1 * SD card reader port, 18-20MB/s 5.1 * TF card reader port, 18-20MB/s Color: Black Package size: 13*4*22cm Sold quantity: 1 piece Product use: USB 3.0 five-in-one expansion, connecting mouse, keyboard, U disk, and supporting SD/MICRO SD reading. Male (USB 3.0): USB 3.0 Female seat: USB3.0*1+USB2.0*3+SD 2.0+MICRO SD 2.0 Type: Plug-and-Play Output power: 5V/2A: Power: 10W Shell material: ABS plastic shell + mute oil Wire: 9-core PVC core Theoretical speed: 5Gbps Supported models (computers): Type-C models are common Supported models (mobile phones): Support OTG function Support system: Windows10.8.7, Vista, XP, Mac10.4.6 are compatible with some mainstream systems on the marketbecomeveryrich