The SB-5644 is a Component Video Digital/Analog Audio Matrix Switcher with RS-232 capable of operating as a switcher for multiple Video/Audio sources & displays. The 4x4 Switcher can switch SPDIF, Component Video, and Stereo Audio signals between four (4) sources and four (4) display with compatible inputs. The unit features a maximum bandwidth of 325MHz which enables a sharp and stunning video in multiple resolutions of up to 1080p. It eliminates the need for moving video I/O cables constantly. With the RS-232 control, the user can control the switcher through a computerized system such as HTPC and thereby eliminate the need for an IR remote control. The four input four output Matrix Switcher is compatible for use with all Video equipment that has proper connections: like Cable and Satellite receivers, Computers, DVD players, VCR's, Video Scalers, and more.