You get a top quick replease plate in the listing, if you have one more setup, you needn't unscrew the top quick release plate and mount it to the other setup. You can mount the the second top quick release plate on to your setup. Save your time now !
The mini quick release plate designed originally for connectivity of LCD monitor and friction articulating arm. It takes time to screw LCD monitor onto the friction articulating arm, most importantly, you could hurt the thread of monitor when you screw it on to the arm. The Mini quick release plate make it easy now.
It features 1/4"-20 screw, allow you attach magic arm, HDMI splitter, LED light, flash, LCD monitor to your rig in a different way now.