Features and Specs:

• Processor: BCM 2835 SOC
• Clock speed: 1GHz
• RAM: 512MB
• Built-in Wireless: WiFi + Bluetooth 4.1 + BLE (Bluetooth Low Energy), same as Raspberry Pi 3.
• Memory: micro-SD
• Display and Audio: mini-HDMI
• USB Port: micro-B USB for data
• Power input: micro-B USB for power
• Camera interface: CSI camera connector (needs adaptor cable, 0.5mm pitch to pitch CSI)
• GPIO: Unpopulated 40-pin GPIO connector, compatible with Raspberry Pi Zero v1.3 and Raspberry Pi 3.
• Compatibility of GPIO: Compatible with existing HAT addons
• Dimensions: 65mm x 30mm x 5mm
• Professionally soldered 40-pin header.