ATEN CS1922M 2-Port USB 3.0 4K DisplayPort MST KVM Switch

Two-computer DisplayPort KVM

The ATEN CS1922M is a 2-port USB 3.0 4K DisplayPort MST KVM switch that lets one user control two computers from a single keyboard, mouse and audio setup. It includes two DisplayPort 1.2 cables, two USB 3.0 cables and four audio cables in the box. The unit supports video resolution up to 4096 x 2160 and USB 3.1 Gen 1 data rates up to 5 Gbps.

Multi-display users versus single-screen setups

This switch suits users who need an extended desktop or splitter mode across two monitors driven from one DisplayPort 1.2 source. It also fits workflows that require independent switching so the KVM focus stays on one computer while USB peripherals remain on the other. Buyers who only need to share a single display between two systems should look at a standard 2-port KVM without MST.

Built-in MST hub for dual DisplayPort consoles

The deciding specification is the integrated Multi-Stream Transport hub that creates two console DisplayPort outputs from a single DisplayPort 1.2 input. This enables dual-monitor operation at 4K resolution without a second video card or additional cabling. If the workflow does not require two displays from one source, the MST capability adds no benefit.