Kramer VS-44HD 4x4 HD-SDI Matrix Switcher
The Kramer VS-44HD is a high-performance 4x4 matrix switcher for SD-SDI (SMPTE 259M and SMPTE 344M) and HD-SDI (SMPTE 292M) signals, as well as a dual link 2x2 matrix switcher. Switching is implemented during the vertical interval period according to the SMPTE RP-168 standard, when using synchronized digital video sources.
