ATEN CS74U
- Computers:
- 4
- Monitors:
- 1
- Video Standard:
- VGA
- Max Resolution:
- 2048x1536
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Manufacturer: ATEN Last updated: 2026-09-15
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ATEN CS74U (4-Port USB VGA/Audio KVM Switch) Review
The ATEN CS74U is the 4-port version of the CS72U, a USB VGA/audio KVM switch for desktop use.
Same core VGA/USB/audio switching as the CS72U, just stretched to four computers. Pick it over the CS72U if two ports isn't enough, otherwise the two share the same resolution ceiling and switching feel.
Same Platform, More Ports
The CS74U shares its core hardware platform and spec sheet with ATEN's 2-port CS72U, meaning the same 2048x1536@60Hz VGA ceiling, DDC2B support and audio switching, just extended to four computer connections. It weighs in at 1.67kg, noticeably heavier than the 2-port model given the extra ports and cabling.
Who It's For
If you're running four VGA-era machines off a single monitor, keyboard, mouse and speaker set, and don't need hotkeys or a remote selector, the CS74U covers it at a fairly low price point for a 4-port unit.
Specifications
Design
| Switching Method | Front-panel pushbuttons |
|---|
Topology
| KVM Segment | Desk |
|---|
Video & Features
| Video Standard | VGA |
|---|---|
| Max Resolution | 2048x1536 @ 60Hz (DDC2B, shared platform with CS72U) |
| Audio Support | Yes |
Display continuity
| HDCP Version | None |
|---|
In the box and price
| Price | 106.24 USD |
|---|
| Computers | 4 |
|---|---|
| Monitors | 1 |
| Power | Bus-powered, DC 5V (shared platform with CS72U) |
| Spec Score | 1.6 |
| USB-C Power Delivery | No |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- 4-PC VGA setups needing audio switching in one box
- Labs or workstations still on VGA-era hardware
Not for
- Anyone needing digital video (HDMI/DisplayPort)
- Hotkey or software-based switching
FAQs
What are the key specifications of the ATEN CS74U (4-Port USB VGA/Audio KVM Switch)?
The ATEN CS74U (4-Port USB VGA/Audio KVM Switch) is a KVM switch from ATEN. Key specs: Computers 4, Monitors 1, Video Standard VGA, Max Resolution 2048x1536 @ 60Hz (DDC2B, shared platform with CS72U), Switching Method Front-panel pushbuttons.
Who is the ATEN CS74U (4-Port USB VGA/Audio KVM Switch) best suited to?
It suits 4-pc vga setups needing audio switching in one box, labs or workstations still on vga-era hardware.
What are the drawbacks of the ATEN CS74U (4-Port USB VGA/Audio KVM Switch)?
It is a poor fit for anyone needing digital video (hdmi/displayport), hotkey or software-based switching.
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