ATEN CS1824 4-Port 4K60 Single-View HDMI KVMP Switch

Overview

The ATEN CS1824 is a 4-port KVMP switch that lets you control up to four computers from a single HDMI display, USB keyboard, and mouse — supporting video up to 4096×2160 @ 60Hz and 2560×1440 @ 144Hz. That dual-mode video spec matters: 4K60 for color-accurate workstation tasks, or 1440p @ 144Hz when a connected system drives a high-refresh-rate display. The CS1824 belongs in any multi-computer rack or desk environment where you need a single-operator console that doesn't cap your display capability. The built-in USB 3.1 Gen 1 hub (two Type-A ports — one front, one rear) means peripherals like external drives or smart card readers follow the active port selection without unplugging. Port switching is handled four ways: front-panel pushbuttons, hotkey sequences, mouse-based switching, or RS-232 commands for integration into automation workflows or remote management scripts. Auto-scan cycles all four ports at a user-defined interval of 1 to 99 seconds, defaulting to 5 seconds — useful for unattended monitoring across multiple systems.

Compatibility

The CS1824 connects up to four computers via KVM switch HDMI ports and a shared USB keyboard/mouse bus. It is compatible with any host system presenting a standard USB HID keyboard and mouse interface and an HDMI video output capable of 4K or 1440p signals. The USB 3.1 Gen 1 hub ports support peripherals up to 5 Gbps. RS-232 command control makes it compatible with room automation controllers (AMX, Crestron, or equivalent) that can issue serial commands for port switching. The CS1824 sits within the broader ATEN KVM and switching line and shares a firmware update file with the CS1822 (2-port sibling), confirming it is part of the same product family. If your environment requires more than four sources, consider a higher-port-count ATEN KVMP variant in the same series.

Installation Notes

The CS1824 is rack-mountable — verify rack unit clearance before ordering, as ATEN expresses physical dimensions in L×W×H rather than the standard W×D×H format for some rack products. Humidity operating range is 0–80% RH non-condensing; avoid installations in unconditioned spaces with condensation risk. Firmware is field-upgradeable (current release v1.1.105, dated 2025-08-01) via the shared cs1822-cs1824 update package. Audio connections use 3.5mm green audio jacks (4 ports). RS-232 port switching requires a serial connection to the switch; confirm COM port availability on your control system before commissioning.