new and high quality Is a must for home use or office work use Ports Features: 4K HD Connector: Support 4K or 30Hz resolution VGA Connector:Support 1080P video transmission USB 3.0: Support USB 3.0 fast speed reading RJ45 Interface: Support 100Mbps Ethernet Network SD or TF Card Slot : Support Reading SD Card or TF Card 3.5mm Aux Jack: Support Earphone Headphone Speaker Type C PD Port:Support 100W PD Charge(Max) Type C Data Port:Support data transfer WARM TIPS: 1) Please provide power supply when connecting to power-hungry devices. 2) Due to the large power consumption of hard drive,if there is a read failure on hard drive,please use by connecting with charger for power supply 3) Due to Mac OS system limit, MacBook can't support separate into 3 different display. 4) Windows 10 or Windows 7 system can support separate into 3 different display. 5) Do not support simultanous reading TF card and SD card. 6) HUB might get warmer when using,please don't worry, this is normal and don't affect work. Interface Type: USB Type-C Ports: 12 Funtion: RJ45 Standard: USB 3.0 Length: 15cm Model Number: C024 color:Silver grey Material:Aluminum alloy size:280 x 80 x 19mm Package Contents: 1 x Docking Station 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.