Rear View       Show Part Numbers       Hide Part Numbers 1015332R, 1015460R, 1015491R, 1015553R, 1015569R, 2906095R       Show Model(s)       Hide Models GT5676, GT5652j, GT5628, GT5692, GT5694 This is the rear of the computer. Refer to the following table for more information. Item Description A AC power connector B Voltage switch C Rear ports D Four add-in card slots The number and types of cards may vary from those shown. E Two side panel thumbscrews F Certificate of Authenticity (COA) label Provides the product identification number for the Microsoft® Windows® operating system originally installed on the hard drive. G Rear vent Do not block this vent.