Apple TV 2gen specs

Size and weight
Height:
0.9 inches (23 mm)
Width:
3.9 inches (98 mm)
Depth:
3.9 inches (98 mm)
Weight:
0.6 pounds

System requirements
AirPort Extreme, Wi-Fi 802.11b, g, or n wireless network (wireless video streaming requires 802.11g or 802.11n) or 10/100BASE-T Ethernet network
iTunes Store account for renting movies and TV shows
Netflix account for streaming Netflix content
For streaming media from a Mac or PC:
iTunes 10 or later; iTunes Store account for Home Sharing

Ports and interfaces
HDMI2
Optical audio
10/100BASE-T Ethernet
Built-in IR receiver
Micro-USB (for service and support)

Environmental requirements
Operating temperature: 32° to 95° F (0° to 35° C)
Storage temperature: -4° to 113° F (-20° to 45° C)
Relative humidity: 5% to 95% noncondensing
Maximum operating altitude: 10,000 feet (3000 m)

Power
Built-in 6-watt universal power supply

Wireless
802.11n Wi-Fi (a/b/g compatible)
2.4GHz and 5GHz

Video formats
H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format

Audio formats supported
HE-AAC (V1), AAC (16 to 320 Kbps), protected AAC (from iTunes Store), MP3 (16 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, and 4), Apple Lossless, AIFF, and WAV; Dolby Digital 5.1 surround sound pass-through

Photo formats
JPEG, GIF, TIFF

TV compatibility
Compatible with high-definition TVs with HDMI and capable of 720p 60/50Hz,2 including popular models from these manufacturers: Hitachi, JVC, LG, Mitsubishi, NEC, Panasonic, Philips, Pioneer, Samsung, Sony, Sharp, Toshiba, Vizio, Westinghouse

Accessories
HDMI to HDMI Cable
Digital Optical Audio Cable
AppleCare Protection Plan