Features:

• BCM2835 chipset, Overclockedto 1Ghz 
• 512MB RAM
• Tiny Form Factor: 65mm x 30mm x5mm
• Fully HAT compatible
• 40pin GPIO (Unpopulated)
• Stream and watch Hi-definition video output at 1080P
• Micro SDSlot for OS 
• Tiny Current Draw ~ 140mA at 5V!
• Mini-HDMI for Video
• Micro-USB OTG Host for Data
• Micro-USB for Power
• Micro-CSI Camera Port