Build a 2x2 video wall from one HDMI source and four displays with the StarTech ST124HDVW. Designed for professional AV environments, it supports HDMI 2.0 and true 4K at 60 Hz, giving you the resolution headroom needed for sharp content across a multi-screen layout. The controller also supports HDCP 2.2 and remains backward compatible with 4K 30 Hz and 1080p displays, which helps when mixed display inventories are part of the deployment. EDID emulation simplifies source negotiation and helps the wall come up at the expected resolution without manual intervention at every endpoint. For integrators and IT teams, RS-232 serial control adds a practical management path for remote configuration. That matters in meeting rooms, digital signage installations, and control spaces where display behavior needs to be predictable and centrally managed. This is the kind of hardware that earns its place in a premium AV stack: it reduces setup friction, preserves image quality across four panels, and gives you the control needed for a polished multi-display presentation.