USB3.0/5Gbps quickly read/transmits less data and wait for no trouble, easy to use and use. That is, plug and use USB A & USB C dual connector to use more flexible. Can connect multiple USB device ports to easily expand keyboard / mouse / printer game accessories and other read transmission data U disks, mobile hard disks, etc. Small and exquisite, playing around the palm, easily travel without burden. Beautiful and practical. The integrated aluminum alloy body has good compressive resistance and fast surface heat dissipation. Type: USB C & USB A 4 in 1 Extension Take the mouth: RJ45 x 1+usb3.0 x 1+usb2.0 x 2 System compatibility: Windows/Linux/ OS/Harmony OS/Android ETC Compatible device: mobile phones or computers with USBC or USB A interface Material: aluminum alloy Color: Grey Package Contents: 1 x Extended Dock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.