VIVO Quick Attach VESA Adapter Plate, Designed for Acer and Viewsonic Monitors Including R240HY bidx, SB220Q, RT240Y, R221Q, RT270, G227HQL, VX2276-smhd, and More, VESA up to 100x100 (MOUNT-AR240H): Amazon.co.uk: Computers & Accessories
Acer R240HY bidx 23.8-Inch IPS HDMI DVI VGA (1920 x 1080) Widescreen Monitor : Amazon.co.uk: Computers & Accessories