ATEN VM8604 4-Port DVI Output Board with ScalerThe ATEN VM8604 4 Port DVI Output Board with Scaler is a high performance expansion module designed for ATENs Modular Matrix Switch family. It enables you to route up to four video sources to any of four displays with real time Seamless Switch technology, while its built in scaler ensures each display receives the optimal image quality without manual reconfiguration. Ideal for corporate AV systems, digital signage networks, control rooms, classrooms,