Dual monitor stands for desk that are too thick for a clamp : r/buildapc
How to: Mount a Monitor Arm on to a Thick Drawer Desk! Stable for dual 34" and 21" Monitors! - YouTube
Dual monitor stand with clamp that will fit 5-6” thick desk??? : r/computers
BONTEC Single Monitor Arm Desk Mount for 13-32 inch LCD LED PC Computer Screens TV, Ergonomic Height adjustable Tilt Swivel Rotation Monitor Arm Bracket up to 10kg, VESA Dimensions: 75x75-100x100mm : Amazon.co.uk: