StarTech SV431DHD4KU
- Computers:
- 4
- Monitors:
- 2
- Video:
- HDMI
- Price:
- ~$606
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Manufacturer: StarTech.com Last updated: September 15, 2026
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StarTech SV431DHD4KU (HDMI / 4 Computers / Dual 4K@30Hz / USB 3.0 Hub / ~$606) Review
The StarTech SV431DHD4KU is a 4-port HDMI KVM switch with dual-monitor 4K@30Hz output, a USB 3.0 hub, and analog audio switching for around $606.
This is the HDMI counterpart to StarTech's dual-DisplayPort switch — same idea, two 4K displays fed from any of 4 computers, but capped at 30Hz instead of 60Hz since HDMI here doesn't carry the same bandwidth headroom the DP model gets. Fine for productivity and dual-monitor admin work, not ideal for motion-heavy content. Versus StarTech's own SV431DPDDUA2 — same port count but 60Hz DisplayPort instead of 30Hz HDMI, worth it if your computers output DP. Versus the ATEN CS1944 — a comparable 4-port dual-HDMI KVM at a similar price point.
Dual 4K Monitors, 4 Computers, 30Hz
Both HDMI outputs switch together across all 4 inputs to keep a dual-monitor desk intact, though the tradeoff for HDMI at 4K resolution here is a 30Hz refresh ceiling rather than 60Hz.
USB 3.0 Hub Included
Unlike some HDMI-based dual-monitor KVMs that stick to USB 2.0, this one includes a 2-port USB 3.0 hub for full-speed peripheral sharing.
Comparison to Alternatives
Versus StarTech's own SV431DPDDUA2 — same port count but 60Hz DisplayPort instead of 30Hz HDMI, worth it if your computers output DP. Versus the ATEN CS1944 — a comparable 4-port dual-HDMI KVM at a similar price point.
Specifications
Design
| Switching Method | Button, Hotkey |
|---|
Topology
| KVM Segment | Desk |
|---|
Video & Features
| Video Standard | HDMI |
|---|---|
| Max Resolution | 4K |
| USB Hub Ports | 2 |
| Audio Support | Yes |
In the box and price
| Price | 606.41 USD |
|---|
| Computers | 4 |
|---|---|
| Monitors | 2 |
| Max Refresh Rate | 30 Hz |
| USB Version | USB 3.0 (5Gbps) |
| Power | DC adapter (100-240VAC, 18W) |
| Dimensions | 8.7 x 5.1 x 2.5 in |
| Spec Score | 5.6 |
| USB-C Power Delivery | No |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Dual-monitor HDMI workstations switching between 4 computers.
- Admin and productivity work where 30Hz 4K is acceptable.
Not for
- Motion-heavy or gaming use where 60Hz 4K matters — look at the DisplayPort model instead.
- Single-monitor setups; this is priced for the dual-display feature.
FAQs
What are the key specifications of the StarTech SV431DHD4KU (HDMI / 4 Computers / Dual 4K@30Hz / USB 3.0 Hub / ~$606)?
The StarTech SV431DHD4KU (HDMI / 4 Computers / Dual 4K@30Hz / USB 3.0 Hub / ~$606) is a KVM switch from StarTech.com. Key specs: Computers 4, Monitors 2, Video Standard HDMI, Max Resolution 4K, Max Refresh Rate 30 Hz.
Who is the StarTech SV431DHD4KU (HDMI / 4 Computers / Dual 4K@30Hz / USB 3.0 Hub / ~$606) best suited to?
It suits dual-monitor hdmi workstations switching between 4 computers., admin and productivity work where 30hz 4k is acceptable..
What are the drawbacks of the StarTech SV431DHD4KU (HDMI / 4 Computers / Dual 4K@30Hz / USB 3.0 Hub / ~$606)?
It is a poor fit for motion-heavy or gaming use where 60hz 4k matters — look at the displayport model instead., single-monitor setups; this is priced for the dual-display feature..
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