Description Genuine Dell OEM Rear I/O Ports Plastic Cover Assembly for the Dell Optiplex 7450 All-In-One Desktop systems. This piece covers the bracket for the rear I/O ports. Compatible Dell Desktop Systems:Optiplex 7450 All-In-One DP/N: MK5XR, 0MK5XR Part Number MK5XR Condition Refurbished Shipping Weight 3 lb(s). Item Category Desktop Face Plate