This is a simple three wire cable. Great for jumping from board to board or just about anything else. There is a 3-pin connector on both ends. These are simple jumper wires used on standard 0.1" breakaway headers.

JR Plug Servo Extension wire (Male to Male)
Package size: 10 * 4 * 2cm / 3.9 * 1.6 * 0.8in
Package weight: 21g / 0.7oz

Package list:
10 * 10mm Male to Male JR Plug Servo Extension Lead

GoolRC Servo Extension Lead Wire