From Manufacturer
Mount your camera in vertical mode onto your DJI RS 2, RS 3, or RS 3 Pro gimbal with this Vertical Shooting Clamp from DigitalFoto. The clamp mounts onto the gimbal arm using its integrated clamp, and it secures your Arca-type camera mounting plate using the safety pin and locking lever. A fine-tuning knob provides fine adjustments to secure the camera plate. There are also three 1/4"-20 threads on the bottom of the plate for adding accessories.
UPC: 750073717632