Humanscale M2 Monitor ARM (no Vesa Plate).

Humanscale Single Monitor Arm Desk Clamp Style

1x Humanscale VESA Plate SPARE PARTS REPLACEMENT

Large Monitor Arm Mount 24-40" | Fully Adjustable Desk Stand Bracket with Clamp

Herman Miller - Flo monitor arm (white) with under desk clamp

ABL CMD Vision Single Monitor Arm Desktop Mount large G - clamp - with screws.

Humanscale Monitor Arm, VESA mount, Clamps to Desk, Can Support Heavy Monitors

Invision 19"-32" Screens Single Arm Monitor Desk Mount Stand Bracket with Clamp