StarTech SV231DPDDUA2 2-Port Dual-Monitor 4K DisplayPort KVM Switch

Overview

The StarTech SV231DPDDUA2 is a 2-port KVM switch built for dual-monitor workstations that need to share control of two DisplayPort-connected computers from a single keyboard, mouse, and two displays. At 3840×2160 (4K UHD) @ 60Hz, it preserves the full resolution of modern 4K monitors — no dropped frames, no resolution downgrade when you switch between hosts. If your workflow involves a primary workstation and a secondary machine (a server console, a backup workstation, or a secure-network computer) and you're tired of reaching for a second keyboard, this is a clean hardware solution that adds no software agents and no latency to the signal path.

The unit measures 6.3 × 3.9 × 2.3 inches and weighs just under 1.65 lbs, so it sits comfortably on a desk or can be tucked to the side of a monitor stand. It ships with a universal 100–240V AC power adapter outputting 12V DC at 1.5A, so it runs on any office or control room outlet worldwide.

Key Features

• 4K UHD @ 60Hz on Both Displays: Both console DisplayPort outputs support 3840×2160 at 60Hz — so a dual 4K monitor setup runs at full resolution and full refresh rate on both screens simultaneously, regardless of which host is active. No need to drop to 30Hz or 1080p to make the switch work.
• Dual-Monitor Support per Host: With four host-side DisplayPort connectors (2 per computer), both connected machines can drive two monitors. You see both screens from whichever host you've switched to — useful for traders, engineers, or security operators running multi-screen layouts.
• Four USB 2.0 Type-A Peripheral Ports: The console side exposes four USB 2.0 Type-A ports at 480Mbps, giving you enough bandwidth to share a keyboard, mouse, USB headset, and a USB hub across both computers. USB 2.0 is more than sufficient for HID devices — no bottleneck on daily input peripherals.
• Two USB B Host Connectors: Each of the two connected PCs hooks into the KVM via a USB B port — standard, easy to cable with off-the-shelf USB A-to-B cables. No proprietary connectors to source.
• Integrated Audio Switching: Two 3.5mm mini-jack ports on the console side (one mic-in, one line-out in a 3-position configuration) carry audio from whichever host is active. The four host-side audio connectors mean both computers stay wired — no re-plugging headsets when you switch. This matters in environments where voice comms or monitoring audio is part of the workstation workflow.
• Push-Button and Hotkey Switching: You can switch hosts via the physical button on the unit or via keyboard hotkey sequences — both methods work without interrupting what's running on the inactive host. Hotkey switching is faster in high-context-switch workflows where you're bouncing between machines repeatedly.
• Wide Input Voltage Range (100–240V AC): The included power supply handles any standard AC outlet without a voltage converter. Relevant for government, military, or international enterprise deployments where outlet standards vary by facility or region.
• Broad Operating Temperature Range (0°C to 40°C): Rated for standard office and control room environments. Not rated for industrial or outdoor use — this is a desk or rack-adjacent unit.

Integration and Compatibility

The SV231DPDDUA2 connects to any computer with a DisplayPort output — including workstations, NVR management stations, and security server consoles. The four DisplayPort 20-pin connectors on the host side follow standard DP pinout, so any DP 1.2 or later source capable of 4K output will work at full resolution. The USB 2.0 B host ports are universally compatible with Windows, macOS, and Linux HID drivers — no software installation required on most modern operating systems.

For KVM switch deployments in security operations centers, this unit fits neatly between two workstations driving a shared dual-4K operator console. Pair it with a quality DisplayPort cable rated for 4K/60Hz to ensure the signal chain doesn't degrade the resolution the switch supports. If you're evaluating StarTech KVM and switching products more broadly, the SV231DPDDUA2 sits in the dual-monitor 2-port tier — step up within the family if you need more than two host computers or additional USB port density.

Frequently Asked Questions

Q: Does the SV231DPDDUA2 support 4K at 60Hz on both monitors simultaneously?

A: Yes. Both console-side DisplayPort outputs are rated for 3840×2160 (4K UHD) at 60Hz, so both monitors on the active host run at full 4K/60Hz resolution when connected.

Q: How many computers can the SV231DPDDUA2 connect to?

A: Two. The unit has two sets of host connectors — each set includes two DisplayPort outputs and one USB B port — supporting exactly two computers sharing one dual-monitor console.

Q: Does the SV231DPDDUA2 require software or drivers to switch between computers?

A: No software or drivers are required for basic switching. You can switch between hosts using the physical push button on the unit or via keyboard hotkey sequences.

Q: Does the SV231DPDDUA2 switch audio along with video and USB?

A: Yes. The unit includes two 3.5mm mini-jack ports on the console side and four on the host side. Audio switches with the active host, so your headset or speakers follow the selected computer automatically.

Q: What power supply does the SV231DPDDUA2 use, and is it included?

A: The SV231DPDDUA2 requires a 12V DC, 1.5A power supply. It accepts 100–240V AC input, making it compatible with standard outlets worldwide.

Q: What is the warranty on the SV231DPDDUA2?

A: StarTech provides a 2-year manufacturer warranty on the SV231DPDDUA2.

Ted Perry

The spec I keep coming back to on the SV231DPDDUA2 is the 4K/60Hz throughput on both console DisplayPort outputs simultaneously. A lot of budget KVM switches in this tier either cap out at 30Hz at 4K or force you to drop one monitor to a lower resolution when switching — this unit doesn't do that. Both outputs maintain 3840×2160 at 60Hz regardless of which host is active, which matters the moment your operators are working with high-frame-rate video feeds or detailed CAD layouts on a 4K panel.

Technical Highlights:

• Dual 4K/60Hz Console Outputs: Both console DisplayPort ports deliver 3840×2160 @ 60Hz — the full native resolution of current 4K monitors, with no refresh rate compromise on either screen.
• Four USB 2.0 Console Ports at 480Mbps: Enough bandwidth and port count to share a keyboard, mouse, and two additional USB HID or low-bandwidth devices across both connected computers without a hub.
• 100–240V AC Power Input: The included adapter runs on any standard outlet, which simplifies deployment in mixed-voltage facilities or international installations without sourcing a separate converter.

Deployment Considerations:

• Cable quality matters here — use DisplayPort cables rated for HBR2 (High Bit Rate 2) or better to sustain 4K/60Hz over the full cable run. A marginal cable will cause dropouts at this bandwidth even if the switch itself is fine.
• The operating temperature ceiling is 40°C (104°F) — fine for climate-controlled offices and control rooms, but don't install this in a server room hot aisle or an unventilated AV rack without confirming ambient temps stay below that threshold.

The SV231DPDDUA2 is a solid fit for security operations center operator desks where a primary workstation and a backup or secondary-network machine share a dual 4K console — the hardware switching means no software dependencies, no VPN, and no network path between the two hosts.