This is a MALE RS232 to TTL signal serial converter cable. The type I cable converts a serial signal to TTL with connections for Tx, Rx, +3V/5V and ground. The TTL connector is a 4-pin Friction Lock with a 0.100" pitch.
These heavy duty gear motors have a rated speed of 240 RPM and a gear reduction of 1:24 with a 1:1 right angle gearbox. These geared motors feature encoders and serve as excellent robot motors, but work great for other uses.