... layers Processing 2 Fully Configurable Inputs Seamless Switcher, with Preview monitor, USB input, LED display Video Processor(VSP 1121 ... Background Input4. User-defined pixel-based Scale5. Program and Preview Outputs6. Multiple Seamless Switching Effects VSP1121 is a 3 ... managerd by using the RGBlink software. Seamless Switcher, with Preview monitor, USB input, LED display Video Processor(VSP 1121 ...