Canon EOS-1D X Mark II DSLR Camera (Body Only) - Manual (Page 38)

Nomenclature
38
When connecting the camera to a computer or the Connect Station, use
the provided interface cable or one from Canon (shown in the System
Map on page 487).
When connecting the interface cable, also use the provided cable
protector. Using the cable protector prevents the cable from accidental
disconnection and the terminal from getting damaged.
Using the Provided Interface Cable and a Genuine HDMI Cable
(sold separately)
Using the Cable Protector
Provided interface cable
Clamp
1 2
3 4
Cable protector
HDMI cable (sold separately)
5