The sync bracket can be fired by either the built in slave cell or via a triggering device plugged into the built in X sync/PC sync socket. The built in slave cell can be adjusted to allow for none, 1, 2 or 3 pre flashes if required.
Included with the TriFlash Sync are a 3.5mm to 3.5mm mono jack cable and a 3.5mm mono jack to PC Sync cable to attach third party triggering systems. A dummy cold shoe is also included to allow photographers who work with one or two guns to slide their trigger receiver (i.e. Pocket Wizard) onto one of the spare shoe mounts.
NOTE: TriFlash brackets are not compatible with Sony flash guns.