The Parallax PS/2 to Breadboard adapter makes it convenient to connect a PS/2 mouse or keyboard to breadboards, protoboards, etc with 1/10-inch hole spacing.  Designed with the Propeller Education Kit in mind.  

Features:

• PS/2 female socket (mini-DIN-6)
• 4 dual-pin DIP board provides a steady base for plugging and unplugging the peripheral's cable.
• Compact board can be oriented across a breadboard trench lengthwise or crosswise for flexibility in parts placement.
• Narrow board allows for placement of multiple adjacent modules with minimal breadboard space consumed
• Power requirements: regulated +5 VDC; for supply current see your PS/2 peripheral's specifications
• Communication: Synchronous serial, open collector
• Dimensions: 0.92 x 0.525 x 0.90 in (23 x 13.3 x 22.8 mm)
• Operating temp range: +32 to +158 °F (0 to +70 °C)