ATEN CS1924M 4-Port USB 3.0 4K DisplayPort KVMP Switch

Overview

The CS1924M is a 4-port ATEN KVMP switch that shares a single DisplayPort monitor, USB keyboard, and USB mouse across four computers — plus routes USB 3.1 Gen1 peripherals to whichever computer is active. The defining spec here is the video ceiling: 4096 x 2160 at 60Hz, which means you can drive a true 4K display without resolution compromise. For environments running dual-display workstations or gaming-grade monitors at 1440p, the 2560 x 1440 @ 144Hz support keeps refresh rate intact. This is a rack-mountable unit, making it a practical fit inside a KVM switch rack alongside servers or editing workstations where desk space doesn't accommodate a desktop switch. If you're consolidating operator control across four production machines, broadcast workstations, or security monitoring desktops, the CS1924M handles the switching layer without downclocking your display.

Compatibility

Works with any computer that outputs DisplayPort video and connects via USB for keyboard and mouse — no proprietary connectors or drivers required for basic operation. The USB hub ports (USB 3.1 Gen1 Type-A) support standard peripherals: flash drives, card readers, or USB-connected devices that need to follow the active port. Port selection is available via four methods — front-panel pushbutton, hotkey sequences, mouse-based switching, or RS-232 commands — making it compatible with automation environments where a control system or serial controller handles switching. The scan interval (1–99 seconds, default 5) suits auto-scan monitoring setups common in multi-source video monitoring or IT operations centers. Firmware v1.1.107 (released 2023-12-07) is current as of the product file date. For KVM cabling and accessories, verify DisplayPort cable compatibility at the target resolution before deployment.

Installation Notes

Rack-mount form factor — confirm 1U clearance and cable management before installation. Humidity operating range is 0–80% RH non-condensing; avoid installations near HVAC discharge or in unconditioned spaces. USB keyboard and mouse connections are required at the console side; PS/2 is not supported. RS-232 command control requires a serial connection to the unit for integration with control systems. The USB 3.1 hub ports are split: one on the front panel, one on the rear — plan peripheral placement accordingly.