The cable from Blackmagic Design is a 7.9" cable that has a Din 1.0/2.3 connector on one end and a BNC female connector on the other end. This cable can be used to connect a device with a Din 1.0/2.3 connector to another device with a regular BNC cable.
Specifications
Connector 1: Din 1.0/2.3
Connector 2: BNC female
Cable Length: 7.9" / 20 cm
Weight: 2 lb / 0.9 kg
Package Weight: 0.055 lb
Box Dimensions (LxWxH): 7.85 x 4.25 x 0.4"