Adder Technology
Adder CATx VGA, USB and Audio Computer Access Module
Best remote connectivity solution for IT professionals managing distributed server racks.
Extend your computer's VGA video, USB keyboard/mouse, and audio signals up to 1000 feet with the Adder CATX-USBA Computer Access Module. This compact device connects directly to your computer's ports and uses a single CATx cable for transmission to a compatible AdderView CATx KVM switch or receiver. It ensures optimal display resolution through active DDC/EDID support and is conveniently powered by the host computer's USB connection, eliminating the need for external power supplies. Operating independently of the OS, it offers reliable, plug-and-play connectivity.
$143.10
Owner Satisfaction
4.5
/ 5
Category Rank
114
/ 1363
#114 in KVM Switches
Price vs Category Average
-87%
Below average
Max Resolution & Extension
1920120060330100
/ x @ Hz at ft (m)
Who it's for
- IT managers extending workstations across large office facilities
- System administrators organizing messy, high-density server racks
- Users requiring reliable, plug-and-play monitor compatibility
Who should skip it
- Organizations seeking hardware interoperability across different brands
- Budget-conscious buyers planning large-scale infrastructure deployments
- Professionals needing high-definition digital video output
Performance breakdown
Signal Extension Range
Reliably transmits high-quality signals across impressive distances up to 1000 feet.
Installation Simplicity
Plug-and-play design eliminates complex configuration for a seamless setup experience.
Power Efficiency
USB-powered operation removes the clutter of external power adapters entirely.
Form Factor
Ultra-compact zero-U footprint keeps server racks tidy and space-efficient.
Display Fidelity
Active DDC support ensures consistent, sharp resolution across long cable runs.
System Compatibility
OS-independent architecture works flawlessly with any hardware platform you choose.
Key Specs
Max Resolution & Extension
1920 x 1200 @ 60Hz at 330ft (100m)
Maximum Extension
1280 x 1024 @ 60Hz up to 1000ft (300m)
Power Supply
USB powered device, Max 500mA @ 5V
Dimensions
1 in. H x 1.75 in. W x 3 in. D
Weight
0.2 lb. (100 g.)
Connections
1 x VGA, 1 x USB Type-A, 1 x 3.5 mm jack, 1 x RJ45
Audio Support
2-Channel CD Quality via 3.5mm jack
Compatibility
OS-independent (Windows, Linux, Mac OS, etc.)
Features
- Extends VGA, USB, and Audio over one CATx cable
- USB powered, no external adapter needed
- Maintains correct resolution via active DDC support
- Supports resolutions up to 1920x1200
- Includes 'keep alive' circuitry for stable USB
- Flash upgradable for future enhancements
- Plug and play operation requires zero configuration
- Compact, 'Zero-U' form factor
What customers say
This access module earns high praise primarily for its exceptional reliability and robust build quality, making it a favorite in professional IT settings. Users value its consistent performance in flawlessly extending VGA, USB, and audio signals over long distances using standard cabling, ensuring signal integrity with minimal delay. Integration into existing KVM systems is noted as seamless, simplifying complex infrastructure management. The core strength remains its dependable uptime, which is essential for mission-critical operations. While the premium price reflects this superior quality, the initial cost is the main consideration for budget conscious organizations. Overall, it is viewed as indispensable infrastructure.
Know before you buy
No, the module is powered entirely by the USB connection from your host computer. This eliminates the need for external power adapters and helps keep your workspace cable clutter to a minimum.
You can extend your signal up to 1000 feet (300 meters) at a resolution of 1280 x 1024. For higher resolutions up to 1920 x 1200, the maximum distance is 330 feet (100 meters).
Yes, the module is OS-independent, meaning it functions at the hardware level. It is compatible with Windows, Linux, Mac OS, and any other system that supports standard VGA and USB keyboard/mouse inputs.
The module supports 2-channel CD-quality audio via a standard 3.5mm jack. It is designed for standard stereo output rather than multi-channel surround sound formats.
No, the device is truly plug-and-play. It requires zero configuration or software installation, allowing it to work immediately upon connection.
The module features active DDC (Display Data Channel) and EDID support. This allows the computer to communicate directly with the monitor to automatically detect and maintain the optimal display resolution.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$143