Features: No data cable required, compatible with MacBook Pro/Air. Equipped with one USB2.0 and one USB3.0 ports, compatible with U disk, card reader, mouse, keyboard, USB fan, etc. Support PD fast charging protocol, the charging power up to 87W, to meet your daily office needs. Equipped with SD and TF card slots, easy to read your memory card data.(Support simultaneous reading) The HD port supports up to 4K/30Hz resolution, restores real and delicate picture, bringing immersive visual experience. Aluminum alloy shell, shockproof, wear-resistant and scratch-proof, efficient heat dissipation. Specification: Interface: 2*Type-C3.1 male Expansion port: 1*USB3.0, 1*USB2.0, 1*HD, 1*SD card slot, 1*TF card slot, 2*USB-C PD(1 for transfering, 1 for charging) Shell material: Aluminum alloy PD power: Up to 87W HD resolution: 4K 30Hz, 1080P Item size: 11.5 * 2.9 * 1.1cm /4.53 * 1.14 * 0.43in Item weight: Approx. 38g /1.34oz Packing list: 1 * Hub