What cable do I need to connect rows of male header pins together
Are those jumpers beside the connector? Then probably the connector can be connected using the common jumper wires (available with up to at least 10 pins in one housing).
Servo cables usually have a different kind of connector (rounded corners).

To make your own jumper leads, you can buy crimp connector housings from pololu. They also sell pre-crimped wires, if you don't want to crimp them yourself.