Designed for use with the TH-1040-CTS & TH-1040-CTL ceiling mounts,Supports additional display weighing up to 25kg,Supports VESA mounting hole configurations: 75x75mm, 100x100mm, 200x100mm, 200x200mm, also supports 400x400mm via additional adaptor plate AC-AP-4040 (sold separately),Monitor height should not exceed 310mm (12.2") for the TH-1040-CTS and 760mm (29.9") for the TH-1040-CTL configuration.,Landscape to portrait display rotation,Designed for quick and easy assembly,Quick release mechanism for easy display attachment/removal with optional security screw