StarTech.com Desk Mount Monitor Arm, VESA/Apple iMac/Thunderbolt/Ultrawide Display up to 49" (30.9lb/14kg), Height Adjustable/Articulating - VESA 75x75/100x100mm desk mount monitor arm for single 30in (16:9) or 49in (32:9) screen up to 14kg - Works w/ iMa
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