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Simplecom DA451 5-in-1 USB-C Multiport Adapter MST Hub with VGA and Dual HDMI

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Simplecom DA451 5-in-1 USB-C Multiport Adapter MST Hub with VGA and Dual HDMI

This 5-in-1 USB-C multiport MST (Multi Stream Transport) Hub provides a VGA output and two HDMI outputs, enabling you to connect up to three monitors at once, with support for up to two extended screens. Additionally, it supports Power Delivery of up to 100W charging through the USB-C port, and a USB-A SuperSpeed port for data connection with a data transfer rate of up to 5Gbps.

Don't be restricted to the small screen on laptop, this adapter can significantly increase productivity by adding multiple screens to your laptop and ideal for multi-tasking. It's a great solution for work or home office to display independent content on extra screens, and makes multi-tasking easier.


  • Support MST (Multi Stream Transport) for mirror or extended screen mode
  • Connect 3 displays to your system through a single USB-C port
  • Supports up to 3 mirrored screens or 2 extended screens
  • Significantly increase productivity by adding multiple screens
  • HDMI supports Ultra HD resolutions up to 4K@30Hz (Single HDMI)
  • VGA supports Full HD resolutions up to 1080p@60Hz
  • Supports Power Delivery up to 100W charging via the USB-C port
  • USB-A SuperSpeed port supports data transfer rate up to 5Gbps
  • Plug and Play, no Driver or software required
  • MST supports Windows only, MacOS supports one extended screen only


  • Material: Plastic, Aluminum
  • Interface: USB-C Male
  • Connection Ports: 2x HDMI, VGA, USB-A, USB-C PD
  • HDMI Resolution: Support up to 3840x2160 at 30Hz (Single HDMI)
  • VGA Resolution: Support up to 1920x1080 at 60Hz
  • PD Charging: 1x USB-C Female (for charging only), up to 100W
  • USB-A Port: 1x USB-A Female (SuperSpeed 5Gbps)
  • Operation Temperature: 0 - 50°C
  • Cable Length: 15cm
  • Dimension: 9.2cm x 4.5cm x 1.6cm
  • Weight: 60g

System Requirements

  • Available USB-C port with DP Alt Mode (DisplayPort Alternate Mode) support
  • Windows 8 or above for MST and 2 Extended Screen support
  • MacOS does not support MST technology and will only support one extended mode


Important Note

  • Before purchasing, please confirm the USB-C port on your device supports DisplayPort Alternate Mode (DP Alt Mode). Some USB-C ports only work for charging or data transfer, no video output function
  • Screen resolution will be limited to 1080p when two HDMI monitors are connected
  • Screen resolution will be limited to 1080p when VGA port is connected
  • The USB-C Female port is for PD Charging only, not for data transfer
  • Please connect power delivery adapter when power is not enough
  • USB-A port is not suitable for charging iPad, tablet or other high power USB devices


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