Simple darlington transistor array.

• 8 transistors
• up to 50VDC
• up to 500mA/pin
• Simple 1 port interface:
    8 inputs control the 8 outputs
• Output pins (8x2 pin array):
    8 controlled power out pins
    8 common VCC pins
• Input power:
    External voltage (2 pin connector)
    Voltage from motherboard (jumper)