Really Right Stuff B1DXMkII-L Set L-Plate for Canon 1D X and 1D X Mark II Tele Vue EN6-13.0 you can use this cable

you can use this cable to charge a smartphone or provide power to a portable storage drive

The Patch Box II is the answer for engineers without sufficient stereo balanced or unbalanced mixer outputs

and Ricoh GXR A12 M Mount Module

6" thick Grommet mount attaches through hole 5-16-2" (7-51 mm) wide and up to 3" (80 mm) thick Designed with patented Constant Force lift-and-pivot motion technology

Really Right Stuff B1DXMkII-L Set L-Plate for Canon 1D X and 1D X Mark II Tele Vue EN6-13.0 you can use this cableFor Canon EOS 1D X and 1D X Mark II Arca Type Compatible Dovetail Mount Modular Design, Base Plate & L Component Push Button QD Sling Swivel Sockets Maintains Access to Battery Anodized 6061 T6 Aluminum 1 4" 20 Accessory Mounting Socket Laser Engraved Center Mark on Both Axes Built In Magnetic Tool Storage Dedicated to the Canon EOS 1D X and EOS 1D X Mark II, the B1DXMkII L Set L Plate from Really Right Stuff is an Arca type compatible plate that