Q (Ben Whishaw) has two large widescreen LG 25" 21:9 UltraWide Full HD IPS Displays on his desk at his house.
The large, black monitors are used by Q to see what's on the USB stick that Bond and Moneypenny bring to his house.
The LG monitors, product code 25UM58-P, are still available online:
More information and links