Low excess loss,
Low Insertion loss, 

Broad operating band
High stability and reliability
Various connector options, SC, LC, FC, ST or specify other
Various Pigtail options
various fiber options
Various length options - please specify
1 x 4 port configuration

Multi-mode fiber communication systems
Testing instruments
Optical fiber sensors

Please download the PDF here for Full Specifications:

 Multimode Fiber Coupler Module - Tree and Star - 1 x 4