Usb-c hub (4-in-1): extend one 4K UHD HDMI port, two Supper speed USB 3.0 Ports, one SD Memory Card slot and one TF memory card slot from one USB-C/Thunderbolt 3/ Type C port
4K video USB-C to HDMI Adapter: mirror or extend your screen with USB C hub HDMI port and directly stream 4K UHD @ 30Hz or full HD 1080P video to HDTV, monitor or projector
Super speed USB 3.0 ports(at full-speed): allow you to connect keyboard, Mouse, hard drive, etc to MacBook Pro, up to 5Gbps data transmission speed, down compatible with USB A 2.0 and below. Because HDD/SDD needs more power, so this adapter only allow connect 1 HDD/SSD and this adapter won't support Apple USB Super drive.
Convenient USB-C to card reader for USB-C/Type-C/Thunderbolt 3 devices to access files from SD/TF card reader, perfect for photographer or designer, etc
What's in the box1X 4 in 1 USB C Hub