This can be used to mount the female connector of a "Slim HDMI" cable in place of the Amiga RF modulator (which first needs to be removed from the motherboard). This provides easy access externally without having to cut the case or route the cable externally.
The "Slim HDMI" cable can be found here http://amzn.eu/0Ii7jV2
The two sections are held together using a cable tie, and then a second cable tie is used to attach it to the motherboard using the existing RF modulator holes. I also used to small piece of 3M tape on the bottom to stick it down.
Although this was designed with the Amiga 600 in mind, it should also be suitable for the Amiga 1200 once the Vampire V4 is released.
Update - Have added a version with larger holes for the pins to fit into. Have noticed that these occasionally are quite tight so this should help with that.