This is an Elinchrom 3.5 mm Jack to EL-Amphenol Sync Cord. It is 16' (5 m) long, and it is used to hardwire Elinchrom flash packs or monolights in cases where the units are too far-spread for the optical slaves to function. It may also be used in cases where your radio slave is ineffective, or not allowed.
Reviews Elinchrom Sync Cord - Male 3.5mm to Elinchrom Amphenol - 16' (5m)