[citation][nom]nickwalters[/nom]You've got it basically. It comes with everything you need except storage, keyboard, mouse, power, and monitor. It can hookup to older TV's via an RCA connector, or to a HDTV or monitor via HDMI. It has USB ports for connection of KB/Mouse(or other things with a hub). It has a 1/8" jack for sound. A jack for power, which in diff versions has either been mini-USB or a jack, and I'm unsure what the final version uses Lastly it has an ethernet port for networking. All in a package the size of a credit card. Onboard it has 256mb of ram, CPU, GPU, USB, Ethernet and Sound. Storage can be installed either through a SD slot or by using a USB thumb drive.
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All models use micro-USB for power, on the assumption that you can find a cell phone charger easily that fits the spec. Although you can use a USB drive, it has to boot off SD flash.