Getting Started With Your PC Right-side & Left-side View 1 No 2 3 Item Description 1 USB Port (Optional) Connect the USB plugs into the USB ports to connect your USB devices, such as MP3 players, digital cameras, keyboard and mouse,or external hard disk drives, etc. 2 Media Card Reader (Optional) Insert your memory card into this media card reader to access photos, audio and video files, or other data stored in the memory cards.