With the supplementary option R&S CMU-K64, HSDPA 3.6 Mbps, added to R&S CMU-K65, R&S-K66 and one of the signalling options R&S CMU-K57 to R&S CMU-K59, R&S CMU-K61 to R&S CMU-K63, or R&S CMU-K67 to R&S CMU-K69, the R&S CMU200 supports 3.6 Mbps High