APC AR8463 rack accessory Mounting kit

APC AR8463. Type: Mounting kit, Product color: Brushed steel. Width: 5" (127 mm), Depth (max): 21" (53.3 cm), Height: 2.01" (51 mm). Package width: 5" (127 mm), Package depth: 21" (533 mm), Package height: 2.01" (51 mm)