One for $45.00 or buy THREE for $100.00. We have HP E231 LED monitors. DVI (white plug) / VGA (blue plug) and Display (looks like an HDMI BUT is not compatible with HDMI). Can also use it as a USB hub. Has 2 USB ports on the side. Can be seen at RescueTECH 2225 14th Avenue between the hours of 10am - 5:30pm Monday to Friday. Thanks for checking out our ad!