Astrotek USB-C Dock 12-in-1 Multiport Docking Station with 2xHDMI 4K 1xVGA 1xGLAN 3xUSB3.0 1xUSB2.0 TF/SD Card Reader 3.5mm Audio USB-C PD ~100W 12 in 1 Docking Station Dual Monitor ,Triple Display USB C Adapter to 2xHDMI 4K, VGA, Ethernet, 4xUSB Ports, SD/TF Card Reader for MacBook and Window Make sure that the host USB-C port on the device complies with the USB 3.1 specification or the USB-C port is Thunderbolt 3. To use the HDMI output port, the host USB-C port from your device must support DisplayPort Alt Mode.. 3.5mm Audio needs to be used with HDMI or VGA. Some computer systems need to manually install the network card driver to connect to the Internet When VGA Port is connected, each monitor will be limited to a maximum resolution of 1920 x 1080@60Hz User Interface Input USB-C x 1 Output HDMI 4K x 2 VGA 1080P x 1 USB 3.0 Type A x 4 SD CARD x 1 TF CARD x 1 Ethernet 1000Mhz x 1 3.5mm Audio x 1 USB C Power delivery 87W x 1 Resolution Single Monitor_ 1*4K@30Hz(3840x2160) (HDMI) Single Monitor_ 1*1080P@60Hz(1920x1080) (VGA) Dual Monitors_ 2*1080P@60Hz (HDMI + HDMI)/ (HDMI + VGA) Triple Monitors_ 2*1080P@60Hz + 1*800x400@60Hz (HDMI + HDMI + VGA) Physical Characteristics Colour Space Gray Length 15cm System Requirement USB-C Ports with DP alt Mode, Windows Chromebook and Mac OS Warranty 1 year