-R&S®UPL-B1 : Low Distortion Generator                        

-R&S®UPL-B29 : Digital Audio I/O 96 kHz                        

-R&S®UPL-B21 : Digital Audio Protocol                        

-R&S®UPL-B22 : Jitter and Interface Test                        

-R&S®UPL-B4 : Remote Control                        

-R&S®UPL-B5 : Audio Monitor                        

-R&S®UPL-B6 : Extended Analysis Functions                        

-R&S®UPL-B7 : Hearing Aids Test Accessories                        

-R&S®UPL-B10 : Universal Sequence Controller                        

-R&S®UPL-B11 : LAN Interface for R&S® UPL06/66                        

-R&S®UPL-B33 : Automatic Audio Line Measurement