Sonifex Redbox RB-SC2 dual sample rate converter, 1U rack-mount which produces AES/EBU, S/PDIF and TOSlink optical level digital audio outputs from a balanced AES/EBU, S/PDIF and TOSlink optical level digital audio inputs, the sample rate of the outputs can be set by an internal clock or from various external synchroniser sources, up to 192kHz, Options: analog videoboard RB-SYA or digital sync videoboard RB-SYD for videosync,