New in box, as shown

Easily extend one USB C port to 4K HDMI, 2 x USB 3.0 ports, 3.5mm headphone jack, Ethernet port
No need to install a drive
Plug and Play design
(not for use with protective case)
USB C to HDMI port can mirror or extend your screen
Stream directly 4K UHD of Full HD 1080p video to HDTV, Projector etc.
USB 3.0 allows connecting to keyboard, mouse, USB drive, USB hard disks, etc
Up to 5Gbps data transmission speed, down compatible with USB 2.0 and below
Audio and Mic 2-in-1 port makes listening, talking, or recording easy.