It does not have front-mounted mic or headphone ports. It is intended for use with a TV as a media PC, and it has a baseline storage capacity of 500GB for storing downloaded media, as well as an optional blu-ray player and burner. It uses a fully wireless keyboard entry system, included, and has a built-in 8-channel surround sound processing unit to accommodate various sound setups. It uses Windows 7 as an operating system. The 320, like the 312, has an optional built-in digital tuner as well, and with this feature it can receive HDTV signals and record TV shows directly to its hard drive. Numerous external ports are included as well. See below for PC specifications.