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Adder AV4PRO-VGA-Dual 4-Port Dual-Head VGA KVM Switch
Adder Technology

Adder AV4PRO-VGA-Dual

Expert rating7.6 / 10

View on adder.com
Port Count:
4
Video Standard:
VGA (dual-head)
USB:
USB 2.0
Audio:
Yes

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Manufacturer: Adder Technology Last updated: 2026-09-12

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Adder AV4PRO-VGA-Dual Review

Adder AV4PRO-VGA-Dual 4-port dual-head VGA KVM switch USB audio

Keeps dual-monitor VGA trading floors and legacy workstations alive, switching four dual-head VGA systems to one pair of monitors, keyboard, mouse and speakers with a single button press.

Dual-Head VGA That Still Matters

Plenty of finance, industrial control and older lab workstations remain VGA and dual-head. The AV4PRO-VGA-Dual keeps them productive by consolidating four such systems onto one operator console without a resolution or refresh compromise up to 1920x1200 per head.

Comparison to Alternatives

It's the VGA counterpart to Adder's AV4PRO-DVI-DUAL, same 4-port, dual-head, audio-equipped design, just built for analog VGA fleets instead of digital DVI. Against Adder's already-cataloged AV4PRO-DP, the VGA-Dual model is the right choice specifically when the fleet hasn't moved past VGA.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7.6 / 10

A reliable way to extend the life of dual-head VGA fleets; irrelevant once hardware moves to digital video.

Best for

  • Trading floors on legacy dual-head VGA
  • Industrial control rooms with VGA equipment
  • Labs consolidating older analog workstations

Not for

  • New DisplayPort/HDMI deployments
  • Single-head monitor setups
  • 4K or high-refresh requirements

Specifications

What these specs mean
Capability Score
5.8/10

How much this switch can do compared with other desk KVM switches, rated from its specifications.

Identity

BrandAdder
Model NumberAV4PRO-VGA-Dual
Switching MethodFront-panel buttons, keyboard hotkeys, three-button mouse, RS232 ASCII codes, optional RC4 remote

Topology

Computers Supported4 computers
Displays Per Computer2 displays
Video Path TypeIndependent heads
KVM SegmentDesk

Video & Features

Video StandardVGA (dual-head)
USB Hub Ports2
Audio SupportYes

Video interface

Video ConnectorVGA
Video Interface VersionVGA

Display continuity

EDID EmulationYes (learns each monitor)

USB peripheral switching

USB Switching SpeedUSB 2.0
Shared USB Ports2 ports
Dedicated HID Ports2 ports
HID EmulationYes

Switching control

Button SwitchingYes
Hotkey SwitchingYes
Mouse Or Cursor SwitchingYes
Serial Or Network ControlRS232

Audio

Analog Audio JacksYes

Physical and power

Rack MountableYes
External Power RequiredYes

In the box and price

Price702.90 USD

FAQs

What are the key specifications of the Adder AV4PRO-VGA-Dual (4-Port Dual-Head VGA KVM Switch / USB / Audio)?

Key specs for the Adder AV4PRO-VGA-Dual: Shared USB Ports 2 ports, Dedicated HID Ports 2 ports, Audio Support Yes, Computers Supported 4 computers, Displays Per Computer 2 displays, Switching Method Front-panel buttons, keyboard hotkeys, three-button mouse, RS232 ASCII codes, optional RC4 remote.

Who is the Adder AV4PRO-VGA-Dual (4-Port Dual-Head VGA KVM Switch / USB / Audio) best suited to?

Best suited to: Trading floors on legacy dual-head VGA; Industrial control rooms with VGA equipment; Labs consolidating older analog workstations.

What are the drawbacks of the Adder AV4PRO-VGA-Dual (4-Port Dual-Head VGA KVM Switch / USB / Audio)?

Not the best fit for: New DisplayPort/HDMI deployments; Single-head monitor setups; 4K or high-refresh requirements.

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