Fixed Shelf for 4-post Cabinet 19-inch Rack Mountable, 1U (1.75-inch) Height, 29-inch Depth Vented, supports up to 200 lbs, for CPI 24~38" (Depth) Cabinet Chatsworth # 14072-719 SH4F-CPI-14072V-BK These specially designed MegaFrame Fixed Shelves are used to support equipment that doesn’t have rack-mounted brackets such as modems, CPU’s small power supplies, monitors, etc. Shelves mount to the Universal EIA 5/8”-5/8”-1/2” alternating hole pattern of the four vertical mounting rails. Three depths are offered (18”, 24” and 29”) to provide clearance for cables, ventilation, power strips, etc. Shelves have adjustable mounting depths of 13” to 24” for the 18” shelf, 17” to 28” for the 24” shelf, and 24” to 38” for the 29” shelf. Available in vented and non-vented styles. Vented shelves are designed to optimize air flow through cabinet. Sold individually. Made of strong, lightweight aluminum. Supports up to 200 lb Offered in 18”, 24”, or 29” depth, vented or non-vented Installs using 8 #12-24 screws (not included) Related Products: 19”W x 18”D Fixed Shelf, non-vented (Solid) 12336-719 Black 7 lbs 12336-119 Gray 7 lbs 12336-219 Computer White 7 lbs 19”W x 18”D Fixed Shelf, vented 12337-719 Black 7 lbs 12337-119 Gray 7 lbs 12337-219 Computer White 7 lbs 19”W x 24”D Fixed Shelf, non-vented (Solid) 12334-719 Black 9 lbs 12334-119 Gray 9 lbs 12334-219 Computer White 9 lbs 19”W x 24”D Fixed Shelf, vented 12335-719 Black 9 lbs 12335-119 Gray 9 lbs 12335-219 Computer White 9 lbs 19”W x 29”D Fixed Shelf, non-vented (Solid) 14070-719 Black 11 lbs 14070-119 Gray 11 lbs 14070-219 Computer White 11 lbs 19”W x 29”D Fixed Shelf, vented 14072-719 Black 10.5 lbs 14072-119 Gray 10.5 lbs 14072-219 Computer White 10.5 lbs