The RB16 provides a versatile method for electricians, engineers, and other qualified individuals, to interface a LabJack U12 with high voltages/currents. The included DB25 cable connects the RB16 to a LabJack U12. The RB16 has sockets for mounting up to 16 industry standard mini I/O modules (not included). The user can also install a resistor to bypass each socket and pass through the standard digital I/O line. For the LabJack U12 only