Atdec AWMS-HX40 Heavy Duty Dynamic Arm on Post. Max Load: 6-14kg (Flat) 12kg (Curved), Grommet Clamp Desk Fixing, BlackAWMS HX40 combines a powerful heavy duty dynamic arm and head with the flexibility of a post. This solution mounts large heavy monitors including ultrawides. The arm can be set at any height on the post, and the arm itself has long horizontal and vertical reach. The specialist heavy duty tilt head holds large monitors securely while allowing smooth fingertip adjustment of tilt, pan, and rotation.