Adder AV4PRO-VGA-Triple
Expert rating7 / 10
- Computers:
- 4
- Monitors:
- 3
- Video Standard:
- VGA
- USB Hub Ports:
- 2
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Manufacturer: Adder Technology Last updated: September 12, 2026
Adder AV4PRO-VGA-Triple Review
The Adder AV4PRO-VGA-Triple is a triple-head analog VGA KVM switch for 4 computers and 3 monitors.
This is the analog counterpart to the AV4PRO-DVI-TRI already in this catalog, built for triple-monitor desks still running VGA rather than digital video, common in older trading floors and legacy control rooms that haven't upgraded their monitor fleet. It costs less than the DVI equivalent, reflecting VGA's older, lower-bandwidth analog signal path.
Analog Triple-Head for Legacy Fleets
Built for facilities still running VGA monitors, letting three analog displays switch together across four computers without needing digital-to-analog conversion.
Lower Cost Than the DVI Equivalent
VGA's simpler analog signaling makes this triple-head variant less expensive than the DVI-based AV4PRO-DVI-TRI, at the cost of digital sharpness on higher resolutions.
Comparison to Alternatives
Versus the Adder AV4PRO-DVI-TRI, that's the digital DVI version at a higher price, worth it for sharper image quality on modern monitors. Versus the Adder AV4PRO-VGA-Quad, that adds a fourth monitor head, worth it for full quad-VGA spreads.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7 / 10
A cost-effective way to keep a legacy triple-VGA trading desk running without a full monitor refresh.
Best for
- Legacy trading or control-room desks still running VGA triple-monitor spreads
- Facilities not ready to upgrade to digital DVI/DisplayPort monitors
- Buyers wanting a lower-cost triple-head option than the DVI variant
Not for
- Modern digital monitor installations (the DVI variant looks sharper)
- Anyone needing a fourth monitor head (see the VGA-Quad variant)
- Setups needing HDMI or DisplayPort
Specifications
What these specs meanHow much this switch can do compared with other desk KVM switches, rated from its specifications.
Identity
| Brand | Adder |
|---|---|
| Model Number | AV4PRO-VGA-Triple |
| Switching Method | Front-panel buttons, keyboard hotkeys, three-button mouse, RS232 ASCII codes, optional RC4 remote |
Topology
| Computers Supported | 4 computers |
|---|---|
| Displays Per Computer | 3 displays |
| Video Path Type | Independent heads |
| KVM Segment | Desk |
Video & Features
| Video Standard | VGA |
|---|---|
| USB Hub Ports | 2 |
| Audio Support | Yes |
Video interface
| Video Connector | VGA |
|---|---|
| Video Interface Version | VGA |
Display continuity
| EDID Emulation | Yes (learns each monitor) |
|---|
USB peripheral switching
| USB Switching Speed | USB 2.0 |
|---|---|
| Shared USB Ports | 2 ports |
| Dedicated HID Ports | 2 ports |
| HID Emulation | Yes |
Switching control
| Button Switching | Yes |
|---|---|
| Hotkey Switching | Yes |
| Mouse Or Cursor Switching | Yes |
| Serial Or Network Control | RS232 |
Audio
| Analog Audio Jacks | Yes |
|---|
Physical and power
| Rack Mountable | Yes |
|---|---|
| External Power Required | Yes |
In the box and price
| Price | 801.90 USD |
|---|
FAQs
What are the key specifications of the Adder AV4PRO-VGA-Triple (4-Port / 3 Monitors / VGA Triple-Head KVM)?
Key specs for the Adder AV4PRO-VGA-Triple: Shared USB Ports 2 ports, Dedicated HID Ports 2 ports, Audio Support Yes, Computers Supported 4 computers, Displays Per Computer 3 displays, Switching Method Front-panel buttons, keyboard hotkeys, three-button mouse, RS232 ASCII codes, optional RC4 remote.
Who is the Adder AV4PRO-VGA-Triple (4-Port / 3 Monitors / VGA Triple-Head KVM) best suited to?
Best suited to: Legacy trading or control-room desks still running VGA triple-monitor spreads; Facilities not ready to upgrade to digital DVI/DisplayPort monitors; Buyers wanting a lower-cost triple-head option than the DVI variant.
What are the drawbacks of the Adder AV4PRO-VGA-Triple (4-Port / 3 Monitors / VGA Triple-Head KVM)?
Not the best fit for: Modern digital monitor installations (the DVI variant looks sharper); Anyone needing a fourth monitor head (see the VGA-Quad variant); Setups needing HDMI or DisplayPort.
Compare and read more
- Adder ADDERView PRO (AV4PRO-DVI) (4 Computers / DVI / Secure Desktop KVM) vs Adder AV4PRO-VGA-Triple (4-Port / 3 Monitors / VGA Triple-Head KVM)
- Adder ALIF1002P (Network DVI Extender Transmitter & Receiver) vs Adder AV4PRO-VGA-Triple (4-Port / 3 Monitors / VGA Triple-Head KVM)
- Adder ALIF1104T (HDMI KVM-over-IP Transmitter over 1GbE) vs Adder AV4PRO-VGA-Triple (4-Port / 3 Monitors / VGA Triple-Head KVM)
- Adder AdderView PRO AV4PRO (4-8 Computers / 1-4 Monitors / DVI-VGA / Modular Multi-Head) vs Adder AV4PRO-VGA-Triple (4-Port / 3 Monitors / VGA Triple-Head KVM)
- EDID Emulation Explained: Why Your Monitor Resets When You Switch
- Does a KVM Switch Work With Two Different Monitors?