D4 Branch RM™ is a DMX splitter that takes the incoming DMX signal and splits it to four separate outputs that are electronically isolated from each other to ensure uninterrupted data. In addition, each output has dedicated drivers to boost the incoming signal, and the unit includes a link / terminate button for easy troubleshooting.
Specifications:
4-Way distributor/booster / Fully DMX512 (1990) Compliant
DMX Status LED Indicator
1 3pin + 1 5pin XLR Isolated Inputs
1 3pin + 1 5pin XLR Passive Loop Output
4 3pin + 4 5pin XLR Isolated Outputs
Here is a list of products that may interest you