The Sync Cord - Two SEA&SEA or INON Strobes to Ikelite Bulkhead Non-TTL has SEA&SEA / INON plugs on the strobe ends and an Ikelite plug on the housing end. Replacing Ikelite 4118.2, this 2018 update weighs less, includes hard anodized aluminum fittings on the Ikelite plug, and has built-in strain reliefs at the cord ends.