The VM7904 is a 4K DisplayPort Input Board that works with an ATEN Modular Matrix Switch to offer an easy way that routes 4 DisplayPort video and audio sources to up to 16 or 32 displays. In addition to the DisplayPort interface that carries digital A/V signal, the VM7904 also provides 4 stereo audio input ports that allow stereo audio to be routed independently or embedded for digital output. Compatible with the VM1600A / VM3200; mix and match with modular I/O boards of any type for optimum flexibility. Superior video quality – up to 4096 x 2160 / 3840 x 2160 @ 30 Hz (4:4:4). Support DP1.1 with data rate up to 10.8 Gbps (2.7 Gbps per lane).