The Blackmagic Mini XLR to XLR Audio Cables connect two XLR microphones or line inputs to your Blackmagic Video Assist 4K Monitor/Recorder for superior audio recording. The Black Magic Video Assist 4K features two balanced female mini XLR ports, supporting 48V phantom power. This means you can plug in a standard 3-pin XLR microphone. The cable has a male mini 3-pin XLR connector and a female standard size 3-pin XLR connector, and are 19.5 inches in length.