This is the Great Planes ElectriFly 2mm Female Bullet Adapter to JST Connector.
Features: Connects a motor with 2mm Male Bullet Connectors to an Electronic Speed Control with a JST Male Connector
Includes: One Great Planes ElectriFly 2mm Female Bullet Adapter to JST Connector
Connector #1: 2mm Female Bullet
Connector #2: JST Female (Terminal Gender: Female/Housing Gender: Male)
Max Recommended Continuous Current: 5A-limited to the JST connector
Wire Length: 1.8 (45mm)
Weight: .07oz (2g)
Note: A plug's gender is determined by the terminal, not the housing.