Key features of X300 expansion board:
Input Voltage – 6V to 21Vdc converted to 5V, 4A via step-down DC/DC converter to power the Raspberry Pi.
Storage – The SATA port allows you to connect SATA devices to your Raspberry Pi.
Audio – 3.5mm MIC in jack, 3.5mm stereo audio jack, SPDIF output, audio IO connector (Microphone input and stereo audio amplifier 3.3Wx2)
Wireless - WiFi (IEEE 802.11b/g/n) with antenna, IR sensor (38KHz), Bluetooth serial communication
USB – self-powered USB hub with 3 ports
RTC – Based on DS3231SN with included CR2032 battery
I/Os – Power output connector, headers to access camera connector on top of the Raspberry Pi
Misc – DIP switch to remove connection from RPi’s pin header
Dimensions – 85 x 56mm (Same size as Raspberry Pi)
The expansion board is directly connected on top of the Raspberry Pi using the board GPIO header pins, and no wiring nor soldering is required, and duplicated the 40-pin header of the R-Pi in order to support existing expansion boards. X300 is only fully compatible with Raspberry Pi Model B+.
