Adder AV4PRO-VGA-QUAD-US – 4-Port Quad-Head VGA KVMA Switch

Product Overview

The Adder AV4PRO-VGA-QUAD-US is a 4-port quad-head VGA KVM switch that lets one operator control four computers — each driving four screens — from a single keyboard, mouse, and 16-monitor console. Part of the AdderView 4 PRO MultiScreen family, this multi-monitor KVMA switch carries high-resolution VGA video up to 1920x1440@60Hz per screen along with analog stereo audio and high-speed USB 2.0. It is built for control positions where a quad-screen KVM switch must change sources instantly without dropped keystrokes or re-enumerating peripherals.

Product Description

Multi-system operator desks accumulate keyboards and mice fast. The AdderView 4 PRO VGA QUAD consolidates four quad-head computers behind one console, switching all sixteen VGA feeds, audio, and USB in a single action from front-panel buttons, keyboard hotkeys, a three-button mouse, or the optional RC4 remote.

Adder's USB HID True Emulation technology continuously presents keyboard and mouse signals to every connected computer, so channel changes are instantaneous and reliable — there is no USB re-enumeration delay, and non-standard HID devices such as graphics tablets, jog shuttles, and joysticks work without drivers. Two additional transparent high-speed USB 2.0 console ports accept printers, scanners, storage, and other peripherals, and independent peripheral selection lets the operator type on one computer while a USB device stays attached to another.

An extended DDC EDID profile keeps each computer's graphics card optimized for the attached screens at every switch, supporting WUXGA 1920x1200 and up to 1920x1440. The RS232 options port handles remote switching via simple ASCII codes, firmware upgrades, and unit linking for even larger multi-head systems — useful when integrating with room control processors. Housed in a metal chassis with a calculated MTBF of 800,000 hours, the switch is rated for continuous duty in operations environments. Explore companion extenders and secure switches in the Adder Technology collection at Creation Networks.

Key Features

• Four Quad-Head Computers, One Console — Switches 16 VGA video channels, audio, and USB so a single operator controls four multi-screen systems.
• High-Resolution VGA Video — Supports resolutions up to 1920x1440@60Hz per screen, including WUXGA 1920x1200.
• USB HID True Emulation — Continuous emulation to every computer delivers instantaneous, reliable switching and full support for tablets, jog shuttles, and joysticks.
• Hi-Speed USB 2.0 Transparent Ports — Two console ports connect printers, scanners, and non-standard devices at full USB 2.0 speed.
• Independent Peripheral Selection — Keyboard and mouse can address one computer while USB peripherals remain connected to another.
• Extended DDC EDID Profile — Graphics cards stay optimized for the connected displays across every channel change.
• Four Switching Methods — Front-panel buttons, keyboard hotkeys, three-button mouse, or the optional RC4 remote control.
• RS232 Options Port — Enables ASCII-controlled switching from room control systems, firmware updates, and multi-unit linking.
• Proven Reliability — Metal chassis with a calculated MTBF of 800,000 hours (Telcordia SR332).

Typical Applications

• Government space — consolidate multi-screen workstations where operators monitor several systems.
• Broadcast studio — switch quad-head production and playout machines from one control seat.
• Commercial meeting space — manage multiple multi-display source PCs behind a single operator console.
• Training room — let an instructor move between four quad-screen demonstration systems instantly.

Technical Specifications

Frequently Asked Questions

How many monitors does the AV4PRO-VGA-QUAD-US support?
It connects four quad-head computers (16 VGA inputs total) to one console of up to four screens, switching all four heads simultaneously.

Will my graphics tablet or jog shuttle work through the switch?
Yes. USB HID True Emulation supports any USB human interface device — keyboards, mice, graphics tablets, jog shuttles, and joysticks — with no re-enumeration delay on switching.

Can a room control system trigger channel changes?
Yes. The RS232 options port accepts simple ASCII switching commands, making integration with control processors straightforward. The same port handles firmware upgrades and multi-unit linking.

Does it work across mixed operating systems?
Yes. The switch is compatible with Windows, Linux, Sun OS, macOS, and all known operating systems, so mixed-platform desks are fully supported.

Can USB peripherals stay on a different computer than the keyboard?
Yes. Independent peripheral selection allows the keyboard and mouse to control one machine while transparent USB ports remain connected to another.

Is rack mounting available?
Yes. Adder offers rackmount kits for the AdderView 4 PRO chassis. Contact Creation Networks for the correct kit for your installation, or browse the Adder Technology collection.