As an Amazon Associate, we earn from qualifying purchases. Home » Nippon Labs » IC-C50A-SH Nippon Labs IC-C50A-SH Cat. 5e Inline Coupler Shielded. Cat.5E couplers provide a full range of solutions for voice. ... Nippon Labs . IC-C50A-SH Attributes Brand name, Manufacturer name, ManufacturerNippon Labs