Controls up to 8 HDMI sources while sharing 2 additional USB 2.0 devices Supports up to 1080p (1920 x 1200) HD video resolution Cascade up to 3 levels - Control up to 512 computers from a single console Features 2 built-in USB 2.0 ports for USB peripheral sharing Multi-display feature allows viewing of up to 8 monitors when stacking up to (8) GCS1808H together
