ENTTEC D-Split - 4 x 5 Pin
Compact and very effective opti-splitter for DMX512 distribution. D-SPLIT (5 PIN) is an optical isolator/splitter for DMX512. Its purpose is to allow the user more flexibility in connecting their DMX controlled devices.
Instead of having to make them all fit within a single daisy chain, each of the four outputs from the D-SPLIT can be the start of its own chain, and multiple D-SPLITs can be linked together if needed.
If you prefer to 'hedge your bets', check out the original D-Split 70572, with a combination of 2 x 5-pin DMX and 2 x 3-pin DMX outputs.