This adapter can be used to connect flash sync to three devices that have a screwlock PC connector.
One possible application is to connect the Yongnuo RF-603, or other radio receiver with a screwlock PC sync connector, to two flash units that have screwlock PC sync connectors. This would allow the Yongnuo RF-603 to trip THREE flash units. One on the hotshoe of the Yongnuo RF-603 and two connected using the FZ #0280.
Another possible application would be a twin, manual, macro, flash setup going back to a camera equipped with a screwlock PC sync connector (see list) .All these common flash units have screwlock PC sync connectors.
The Screwlock PC connector is far more reliable than a standard PC connector due to the provided screw-in locking collar.
This cable provides direct and reliable functions. It avoids the need to connect several sync adapters in series (which often results in misfiring).
*This connector is also referred to as the "Nikon" Screwlock PC connector. However this connector is used on many brands, not just Nikon.
Price: $18.00 + shipping