The whole setup consists of the display and the USB cable. It draws the power from a single USB port on recent notebooks, and has dual USB plugs for older notebooks that do not supply enough power for the screen.
The 0.85-inch thin display has simple controls and a stand on the back for desired viewing angle. There is no power switch, simply plugging the microUSB cable turns it on.
The laptop controls all aspect of the display, There is a physical brightness control shown here.
The display connects to the laptop and draws power through this one connector. It uses DisplayLink USB technology so works with both PCs and Macs.
The monitor is 14.1-inches and displays at 1366x768.
Shown being used with a ThinkPad X1 laptop.
The LT1421 is less than an inch thick and highly portable.
The stand allows setting the monitor at a desired viewing angle.