This is the Great Planes Series Adapter 2 Deans Male Ultra to 1 Deans Female Ultra Connector.

FEATURES: Connects two batteries with Deans Ultra Female connectors in Series to an ESC with a Deans Ultra Male connector

INCLUDES: Great Planes Series Adapter 2 Deans Male Ultra to 1 Deans Female
Ultra Connector

SPECS: Maximum Recommended Current: 60A
Connector #1: Deans Male Ultra
Connector #2: Deans Female Ultra
Wire: 14AWG 1.96" (50mm) long
Weight: .31oz (8.67g)