National Instruments SC-2075 DAQ accessory with prototyping breadboard, in excellent condition. 

External power adapter NOT included.

The SC-2075 is a connector accessory for constructing circuits and connecting them conveniently to virtual instruments. It is compatible with both the E Series and legacy 1200 Series data acquisition boards. A ±15 V power supply is available to build op-amp circuits. You can choose the power source from the board or external power supply. The breadboard is detachable for replacement after repeated use. The SC-2075 features three binding posts for 15 V outputs, two binding posts for 0-5 V outputs, and two binding posts for analog inputs.

Excellent condition, please see photos.