StarTech SV431DPUA
- Computers:
- 4
- Video:
- DisplayPort
- Audio:
- 7.1 HD digital audio
- Price:
- ~$377
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Manufacturer: StarTech.com Last updated: September 15, 2026
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StarTech SV431DPUA (DisplayPort / 4 Computers / 7.1 Audio / USB 2.0 Hub / ~$377) Review
The StarTech SV431DPUA is a 4-port USB DisplayPort KVM switch supporting 7.1 HD digital audio and up to 2560x1600 resolution, priced around $377.
The 7.1 digital audio passthrough is the standout feature — most KVM switches strip audio down to basic stereo, but this one carries full surround sound through to a compatible display or receiver, worth it for anyone running a home-theater-adjacent workstation setup. Resolution is capped below full 4K60, so it's better suited to WQXGA-class monitors than the newest 4K panels. Versus StarTech's own SV431DPUA2 — the newer model adds full 4K60 support for a bit more money. Versus the IOGEAR GCS1794 — a similar-generation 4-port DP KVM without the 7.1 audio passthrough.
7.1 Surround Audio Passthrough
Full 7.1 HD digital audio routes through DisplayPort alongside the video signal, in addition to a separate 3.5mm stereo path — a feature most KVM switches at this port count skip entirely.
Resolution Below Full 4K60
Native support tops out at 2560x1600@60Hz, with higher resolutions up to 3840x2400 available only at reduced refresh rates — a real ceiling if your monitors are native 4K@60Hz panels.
Comparison to Alternatives
Versus StarTech's own SV431DPUA2 — the newer model adds full 4K60 support for a bit more money. Versus the IOGEAR GCS1794 — a similar-generation 4-port DP KVM without the 7.1 audio passthrough.
Specifications
Design
| Switching Method | Button, Hotkey |
|---|
Topology
| KVM Segment | Desk |
|---|
Video & Features
| Video Standard | DisplayPort |
|---|---|
| Max Resolution | 2560 x 1600 @ 60Hz (up to 3840 x 2400 at reduced refresh) |
| Audio Support | Yes |
In the box and price
| Price | 377.23 USD |
|---|
| Computers | 4 |
|---|---|
| Monitors | 1 |
| USB Version | USB 2.0 |
| Power | DC adapter (100-240VAC), universal NA/UK/EU/AU plugs included |
| Dimensions | 8.7 x 5.1 x 1.7 in |
| Spec Score | 4.9 |
| USB-C Power Delivery | No |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Users who want full 7.1 surround audio switching alongside DisplayPort video.
- WQXGA (2560x1600) monitor setups across 4 computers.
Not for
- Native 4K@60Hz displays — see the SV431DPUA2 for that.
- Buyers who don't care about audio passthrough quality.
FAQs
What are the key specifications of the StarTech SV431DPUA (DisplayPort / 4 Computers / 7.1 Audio / USB 2.0 Hub / ~$377)?
The StarTech SV431DPUA (DisplayPort / 4 Computers / 7.1 Audio / USB 2.0 Hub / ~$377) is a KVM switch from StarTech.com. Key specs: Computers 4, Monitors 1, Video Standard DisplayPort, Max Resolution 2560 x 1600 @ 60Hz (up to 3840 x 2400 at reduced refresh), USB Version USB 2.0.
Who is the StarTech SV431DPUA (DisplayPort / 4 Computers / 7.1 Audio / USB 2.0 Hub / ~$377) best suited to?
It suits users who want full 7.1 surround audio switching alongside displayport video., wqxga (2560x1600) monitor setups across 4 computers..
What are the drawbacks of the StarTech SV431DPUA (DisplayPort / 4 Computers / 7.1 Audio / USB 2.0 Hub / ~$377)?
It is a poor fit for native 4k@60hz displays — see the sv431dpua2 for that., buyers who don't care about audio passthrough quality..
Compare and read more
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