Adder AV4PRO-DVI-QUAD
Expert rating8 / 10
- Computers:
- 4
- Monitors:
- 4
- Video Standard:
- DVI
- Max Resolution:
- 2560x1600 @ 60Hz
- USB Hub Ports:
- 2
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Manufacturer: Adder Technology Last updated: September 12, 2026
Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00) Review
The Adder AV4PRO-DVI-QUAD is a full four-head DVI KVM switch for 4 computers and 4 monitors, currently discounted to $1955.70 from $2173.00.
This is the top of the AV4PRO DVI head-count ladder, all four monitors switch together across four machines, which is about as far as a single-user desk KVM reasonably needs to go before a true matrix system like the AdderView DDX30 makes more sense. It costs noticeably more than the AV4PRO-DVI-TRI for that fourth head, so buyers should be certain they need all four monitors switched rather than leaving one on a dedicated system.
Full Quad-Monitor Switching
All four displays move together between the four connected computers, keeping an identical quad-monitor layout regardless of which machine is active, useful for trading and surveillance walls.
The Ceiling of the AV4PRO Line
Four heads is the maximum single-switch configuration in the AV4PRO family; anyone needing more monitors or more independent users should look at a true matrix system instead.
Comparison to Alternatives
Versus the Adder AV4PRO-DVI-TRI — that drops to three heads at a lower price, worth it if the fourth monitor isn't switched. Versus the AdderView DDX30 — that's a full matrix system for many users and computers, worth it once a single quad-head desk switch isn't enough.
Specifications
Design
| Port Count | 4 |
|---|---|
| Switching Method | Front-panel buttons, keyboard hotkeys, three-button mouse, RS232 ASCII codes, optional RC4 remote |
Topology
| Computers Supported | 4 computers |
|---|---|
| Displays Per Computer | 4 displays |
| Total Video Inputs | 16 |
| Total Video Outputs | 4 |
| Video Path Type | Independent heads |
| KVM Segment | Desk |
Video & Features
| Video Standard | DVI |
|---|---|
| Max Resolution | 2560x1600 @ 60Hz |
| USB Hub Ports | 2 |
| Audio Support | Yes |
Video interface
| Video Connector | DVI |
|---|---|
| Video Interface Version | DVI |
Per display capability
| Max Refresh At Max Resolution | 60 Hz |
|---|
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 | 1955.70 USD |
|---|
| Brand | Adder |
|---|---|
| Model | AV4PRO-DVI-QUAD |
| Source URL | https://www.adder.com/en/kvm-solutions/adderview-4-pro-dvi-quad |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8 / 10
The right choice for a genuine quad-monitor, 4-computer desk, priced as a premium specialty switch.
Best for
- Trading and surveillance desks running full quad-monitor spreads across 4 machines
- Control rooms needing RS232-automatable quad-head DVI switching
- Analysts who need all four displays to follow the active computer
Not for
- Triple-monitor or smaller setups (the TRI variant is cheaper)
- Budget buyers, given the premium quad-head pricing
- Anyone needing more than 4 computers or independent multi-user access
FAQs
What are the key specifications of the Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00)?
The Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00) is a KVM switch from Adder Technology. Key specs: Port Count 4 computers, 4 monitors, Switching Method Button, hotkey, RS232, Video Standard DVI, Max Resolution 1920x1200 per head, USB Hub Ports 2.
Who is the Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00) best suited to?
It suits trading and surveillance desks running full quad-monitor spreads across 4 machines, control rooms needing rs232-automatable quad-head dvi switching, analysts who need all four displays to follow the active computer.
What are the drawbacks of the Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00)?
It is a poor fit for triple-monitor or smaller setups (the tri variant is cheaper), budget buyers, given the premium quad-head pricing, anyone needing more than 4 computers or independent multi-user access.
Compare and read more
- ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10) vs Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00)
- Adder ALIF1104T (HDMI KVM-over-IP Transmitter over 1GbE / $1,201.75) vs Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00)
- Adder AdderLink IPEPS (IPEPS) (1 Server / IP-Based Remote KVM over IP / Single-Port Extender) vs Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00)
- Adder ALIF1002P (Network DVI Extender Transmitter & Receiver / $3,051.40) vs Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00)
- Adder ADDERView PRO (AV4PRO-DVI) (4 Computers / DVI / Secure Desktop KVM / $540.00) vs Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00)