In the box: Apple TV Apple Remote Power cord Quick Start guide Size and weight Footprint: 7.7 by 7.7 inches (197 by 197 mm) Height: 1.1 inches (28 mm) Weight: 2.4 pounds (1.09 kg)1 Power Built-in 48-watt universal power supply Processor and storage: Intel processor 40GB or 160GB hard drive2 for storing content locally Up to 50 hours (40GB) or 200 hours (160GB) of video3 Up to 9,000 songs (40GB) or 36,000 songs (160GB)4 Up to 25,000 pictures5 System requirements Mac or PC iTunes 7.6 or later Mac: Mac OS X v10.3.9 or v10.4.9 or later PC: Windows XP Home or Professional (SP2) or Windows Vista AirPort Extreme, Wi-Fi 802.11b, 802.11g, or 802.11n wireless network6 (wireless video streaming requires 802.11g or 802.11n) or 10/100BASE-T Ethernet network Ports and interfaces HDMI (video and audio)7 Component video Optical audio Analog RCA stereo audio 10/100BASE-T Ethernet USB 2.0 802.11n wireless networking6 Built-in IR receiver (works with included Apple Remote) Environmental requirements Operating temperature: 32° to 104° F (0° to 40° C) Storage temperature: -40° to 185° F (-40° to 85° C) Relative humidity: 5% to 95% noncondensing Maximum operating altitude: 10,000 feet (3,000 m) Video formats supported: H.264 and protected H.264 (from iTunes Store): Up to 5 Mbps, Progressive Main Profile (CAVLC) with AAC-LC audio up to 160 Kbps (maximum resolution: 1280 by 720 pixels at 24 fps, 960 by 540 pixels at 30 fps) in .m4v, .mp4, and .mov file formats iTunes Store purchased video: 320 by 240 pixels, 640 by 480 pixels, 720 by 480 pixels (anamorphic), or high-definition 720p MPEG-4: Up to 3 Mbps, Simple Profile with AAC-LC audio up to 160 Kbps (maximum resolution: 720 by 432 pixels at 30 fps) in .m4v, .mp4, and .mov file formats Audio formats supported AAC (16 to 320 Kbps); protected AAC (from iTunes Store); MP3 (16 to 320 Kbps); MP3 VBR; Apple Lossless; AIFF; WAV; Dolby Digital 5.1 surround sound pass-through Photo formats supported JPEG, BMP, GIF, TIFF, PNG TV compatibility Compatible with enhanced-definition or high-definition widescreen TVs capable of 1080p/1080i 60/50Hz, 720p 60/50Hz, 576p 50Hz (PAL format), or 480p 60Hz, including popular models from these manufacturers: HP, Hitachi, JVC, LG, Mitsubishi, NEC, Olevia, Panasonic, Philips, Pioneer, Polaroid, Samsung, Sony, Sharp, Toshiba, Vizio, Westinghouse http://www.apple.com/appletv/