Split-cable for Inon, Sea & Sea - strobes.
It has Nikonos 5-pin adapter.
Will support 2 x flashes from just 1 single 5-pin/Nikonos style bulkhead.
Will work on all larger Sea & Sea - and Inon flashes that can or must use electric cable connection.
If you only have one 5-pin outlet on your housing, this is a very affordable solution!