... , mouse operation and IR controller operation supported, VGA output supported.HW-SVR73088 chs video input, 1 chs audio input ... supported, mouse operation and IR controller operation supported, VGA output supported.HW-SVR731616 chs video input, 4 chs audio input ... drive, remote backup supported, mouse operation and IR controller operation supported, VGA output supported.Item NoHW-SVR7304HW-SVR7308HW ...