ATEN CS1824 - 4-Port USB 3.0 4K HDMI KVMP Switch with Audio Mixer Mode

The ATEN CS1824 is a 4-port USB 3.0 4K HDMI KVMP switch that lets you control four computers from a single keyboard, monitor, and mouse. With support for both 4K DCI (4096 x 2160 @ 60Hz) and 4K UHD (3840 x 2160 @ 60Hz) resolutions, plus a genuinely useful Audio Mixer Mode that blends audio from two connected computers at once, it's built for anyone juggling multiple machines who can't afford to miss an alert. Key Features Controls 4 computers from a single HDMI display, USB keyboard, and mouse console Supports 4K DCI (4096 x 2160 @ 60Hz) and 4K UHD (3840 x 2160 @ 60Hz) resolutions Audio Mixer Mode blends audio output from any 2 connected computers simultaneously, so notifications aren't missed even when KVM focus is elsewhere Built-in USB 3.1 Gen 1 hub (5Gbps) for shared high-speed peripherals across all connected computers Multiple switching methods: front-panel pushbuttons, hotkeys, or OSD menu Firmware upgradable for long-term compatibility Durable metal housing built for everyday desktop and studio use Plug-and-play setup with no software installation required Package Includes ATEN CS1824 KVMP Switch Power adapter User manual Can I use the CS1824 with a 4K monitor? Yes. The CS1824 supports both 4K DCI (4096 x 2160 @ 60Hz) and 4K UHD (3840 x 2160 @ 60Hz), so it works with virtually any modern 4K HDMI display. What does Audio Mixer Mode actually do? It mixes the audio output from any two of the connected computers at the same time, so you can stay on one computer's KVM focus while still hearing alerts, calls, or notifications from another. How many computers can I connect? Up to 4 computers, each connected via HDMI, USB, and audio, with instant switching between them. Do I need to install any software? No. The CS1824 works out of the box. Switching is handled via front-panel pushbuttons, hotkeys, or the built-in OSD menu. Does the USB hub support USB 3.0 speeds? Yes. The built-in hub runs at USB 3.1 Gen 1 speeds (5Gbps), so shared peripherals like external drives run at full speed regardless of which computer is currently selected. Specifications Computer Connections 4 Video Resolution 4096 x 2160 @ 60Hz (4K DCI) / 3840 x 2160 @ 60Hz (4K UHD) USB Hub 2-port USB 3.1 Gen 1 (5Gbps) Audio Audio Mixer Mode, mixes output from 2 computers simultaneously Switching Methods Pushbutton, hotkey, OSD menu Housing Metal Dimensions 270 x 88 x 55.5mm Weight 940g Power Consumption ~2.535W typical (DC 5V) Compatibility Computers Windows and Mac PCs with HDMI output Displays HDMI displays supporting up to 4K resolution Peripherals USB 3.0/2.0 keyboard, mouse, and shared USB devices Audio 3.5mm speaker and microphone devices