InfoComm 2018: Hall Research Shows the WX-HDU HDMI and USB Extender in Wallplate FormatJune 13, 2018 | Home / June 13, 2018 rave-video / InfoComm 2018: Hall Research Shows the WX-HDU HDMI and USB Extender in Wallplate Format InfoComm 2018: Hall Research Shows the WX-HDU HDMI and USB Extender in Wallplate Format