This is the Venom Uni 2.0 XT60 Male to Dean's Battery Adapter.
FEATURES: Converts batteries with an XT60 connector to a Dean's connector
Also converts an ESC with a Dean's connector to an XT60 connector
Gold plated spring connectors with high-temp nylon housings
Handles up to 60 amps
INCLUDES: Uni 2.0 XT60 Male to Dean's Female Battery Adapter
BOX DIMENSIONS: 4.00" W. X .38" H. X 5.75" L.
BOX WEIGHT: .01 LBS.