StarTech SV231DVIUA 2-Port DVI KVM Switch

75%

25%

Ease of Setup

Switching Reliability

Video Quality & Resolution Support

USB Hub Performance

Audio Switching

Build Quality

Hot-Key Functionality

Compatibility Across Operating Systems

Value for Money

Compact Form Factor

TAA Compliance

Port Durability

Peripheral Switching Speed

Overview

The StarTech SV231DVIUA 2-Port DVI KVM Switch is a mid-range desktop solution that lets you control two computers from a single keyboard, mouse, and monitor — no second desk required. A KVM switch essentially routes your peripherals to whichever machine you select, and DVI remains relevant for a wide range of professional and legacy displays that still deliver sharp, reliable output. This desktop KVM unit has been on the market since 2011, which says something about its staying power in a category that tends to churn through short-lived products. It also carries TAA compliance, making it a viable option for government and institutional purchasing. Just be clear-eyed going in: if your monitors use DisplayPort or HDMI, this isn't the switch for you.

Features & Benefits

You get two ways to jump between computers: tap a hot-key sequence or hit the physical button on the front panel. Either way, switching is quick and doesn't require you to touch a menu or install anything. The built-in USB 2.0 hub adds six ports to your setup, though in practice it works best with simple devices like keyboards and mice — don't expect it to reliably power demanding peripherals. Resolution support tops out at 1920x1200, which covers 16:10 professional monitors cleanly. Audio follows the active machine via a 3.5mm connection, so your headset stays in one place. The whole unit fits in a compact footprint and works across operating systems without any drivers.

Best For

This DVI KVM switch is a natural fit for IT administrators or developers who run two workstations side by side and still use older DVI monitors — a setup that's more common than people assume in corporate and lab environments. Home office users who invested in quality legacy displays and don't want to replace them just to modernize their desk will find real value here. The TAA-compliant design also opens the door for government agencies and institutional buyers who have compliance requirements on their hardware. If you're currently juggling two sets of peripherals or relying on a clunky manual toggle, this desktop KVM unit is a meaningful step up. It's not for modern HDMI-only monitor setups.

User Feedback

The StarTech two-port switch carries a 3.8-star average across nearly 90 ratings — a score that suggests it does the job without standing out. Buyers consistently praise easy initial setup and the fact that switching between computers feels stable once everything is connected. The no-driver approach earns goodwill across the board. On the other side, the USB hub has drawn complaints about inconsistent behavior with certain peripherals, and a handful of users note that audio switching doesn't always follow the video signal cleanly. Cold boot resolution detection is another recurring gripe. Durability reports are split — some units have run for years, while others showed wear sooner than expected. Solid for basic needs, but realistic expectations matter here.

#KVM Switches

#External Components

#Computer Components

#Computers & Accessories

#Electronics

Pros

Zero driver installation — plug in and start switching between computers immediately on any OS.
Hot-key switching keeps your hands on the keyboard and your workflow uninterrupted.
Supports up to 1920x1200, handling most professional 16:10 DVI monitors without any signal loss.
TAA compliance makes this desktop KVM unit viable for government and institutional purchasing.
Audio follows the active computer automatically via 3.5mm, eliminating a separate manual step.
Compact enough to tuck behind a monitor stand without claiming valuable desk real estate.
Has been on the market since 2011 with continued availability, signaling proven durability.
Front-panel button provides a reliable tactile fallback when keyboard shortcuts aren't practical.
Works across mixed OS environments — a developer running Linux and Windows simultaneously will have no compatibility issues.

Cons

USB hub performance is unreliable with demanding peripherals like external drives or drawing tablets.
Audio switching lags noticeably behind video switching in some setups, breaking call or media continuity.
Resolution detection on cold boot fails often enough to be a real recurring inconvenience.
Port durability is inconsistent across units — some buyers report DVI port loosening within the first year.
Hot-key sequences cannot be remapped, causing conflicts in certain development or remote desktop environments.
No path to expand beyond two computers — the two-port limit is fixed by design.
Strictly a DVI solution; buyers with any HDMI or DisplayPort monitors must look elsewhere.
The USB 2.0 standard feels dated given how long this product has been on sale without a hardware refresh.
Cable clutter around the unit becomes significant when all ports are in use simultaneously.

Ratings

The StarTech SV231DVIUA 2-Port DVI KVM Switch has been scored by our AI system after analyzing verified buyer reviews from multiple global sources, with spam, incentivized, and bot-generated feedback actively filtered out. The result is a balanced picture that reflects where this desktop KVM unit genuinely delivers and where real users have run into friction. Both the strengths and the recurring pain points are represented transparently in the scores below.

Ease of Setup

88%

Most users report being up and running within minutes — plug in the DVI cables, connect the USB console, and you're switching between computers without touching a settings menu. The no-driver approach is consistently praised by IT professionals who manage multiple machines and can't afford time lost to software configuration.

A small number of users encountered recognition issues on first boot, particularly with older USB hubs or non-standard keyboard firmware. These cases are the exception, but they're worth noting if your setup involves unconventional peripherals.

Switching Reliability

82%

18%

Day-to-day switching via hot-key or the front button is reported as stable and responsive by the majority of long-term users. For someone toggling between a work machine and a personal build several dozen times a day, the consistency holds up well over time.

Occasional lag or missed input during switching has been flagged, especially after the system has been idle. A handful of users report needing to press the button twice on rare occasions, which breaks the flow during time-sensitive work.

Video Quality & Resolution Support

79%

21%

At 1920x1200, this DVI KVM switch handles most professional-grade 16:10 monitors cleanly, with no reported signal degradation or color shift under normal desktop use. For users running older high-resolution DVI displays, the image integrity is solid.

Resolution detection on cold boot trips up a meaningful number of users, with monitors occasionally defaulting to a lower resolution until the machine is restarted. This is an inconvenience that shouldn't happen at this price point.

USB Hub Performance

58%

42%

Having six USB 2.0 ports built into the unit is genuinely useful for basic peripherals like keyboards, mice, and small flash drives. Users with simple setups appreciate not needing a separate hub on the desk.

The hub's reliability becomes inconsistent with more demanding devices. Users attempting to connect external hard drives, drawing tablets, or certain gaming peripherals report dropout issues or failed recognition. It behaves more like a passive convenience feature than a dependable hub.

Audio Switching

61%

39%

Integrated 3.5mm audio switching means your headset or speakers follow the active computer automatically, which is a real convenience for users who bounce between a work call on one machine and media on another.

Audio switching lags behind video switching for some users, creating a brief moment where sound is cut or stuck on the previous computer. A few buyers report the audio simply not switching at all without physically unplugging and reseating the cable.

Build Quality

71%

29%

The unit feels solid enough for desk use — the plastic shell is firm, the button has a satisfying click, and the DVI ports hold cables snugly without wobble. For an unattended piece of hardware that mostly sits behind a monitor, it doesn't feel cheap.

Longevity reports are split. Some buyers have run the same unit for five or more years without issue, while others describe port loosening or button degradation within the first year. The inconsistency suggests some variation in manufacturing batch quality.

Hot-Key Functionality

76%

24%

The keyboard shortcut for switching is easy to memorize and works reliably across Windows and Linux environments. Power users who prefer keeping their hands on the keyboard appreciate being able to switch computers without reaching for the front panel.

Hot-key combinations can occasionally conflict with application-level shortcuts, particularly in development environments or remote desktop sessions. There's no way to remap the shortcut sequence, which limits flexibility for users with complex keyboard setups.

Compatibility Across Operating Systems

83%

The plug-and-play nature of this desktop KVM unit makes cross-OS setups genuinely painless. Users running a Mac alongside a Linux workstation, or Windows next to a BSD machine, report no driver conflicts or input translation issues.

Edge cases exist with certain Linux distributions where USB device enumeration takes slightly longer after switching, causing a brief delay before the keyboard and mouse become active. It's a minor issue, but it surfaces often enough to be worth mentioning.

Value for Money

67%

33%

For buyers who specifically need a DVI KVM switch with audio and USB passthrough, the options are limited and this unit covers all the bases without requiring multiple separate adapters. In that narrow context, the price is reasonable.

Measured against newer KVM switches at similar price points that support HDMI or DisplayPort, the value proposition feels strained. Buyers who don't strictly need DVI will find better-rounded options without paying a legacy-format premium.

Compact Form Factor

84%

The dimensions make it easy to tuck behind a monitor stand or mount alongside a desk-edge cable tray. IT users who manage tidy workstation environments appreciate that it doesn't demand dedicated shelf space or a visible footprint.

The cable arrangement around the unit can get cluttered quickly when all ports are in use — two sets of DVI and USB cables plus audio lines bunch together in a small area, making cable management harder than the unit's size would suggest.

TAA Compliance

86%

For procurement officers in government agencies or federally contracted environments, TAA compliance removes a common barrier to purchase. This is a straightforward advantage that competing products in the same category don't always offer.

TAA compliance matters almost exclusively to institutional buyers. For general consumers or private-sector professionals, it has no practical impact and does not offset any of the product's functional limitations.

Port Durability

63%

37%

Users who set up the switch once and rarely unplug cables report no issues with port wear over multi-year periods. In a stable, fixed desk setup the connections remain firm and the signal stays consistent.

Frequent cable swapping tends to accelerate port degradation. A number of reviews describe DVI ports becoming loose after repeated connection cycles, which is a real concern for IT environments where machines get rotated in and out of the same desk.

Peripheral Switching Speed

77%

23%

The time between pressing the switch and having full keyboard and mouse control on the target computer is fast enough for daily professional use. There is no perceptible delay for users switching to check emails or run a quick terminal command.

Switching speed slows noticeably when a higher-resolution monitor is initializing or when USB enumeration takes longer on the target machine. Users in high-throughput workflows where every second counts may find this intermittent lag frustrating.

Suitable for:

The StarTech SV231DVIUA 2-Port DVI KVM Switch was built for a specific kind of user, and for that user it genuinely delivers. IT administrators and developers who run two workstations side by side — and still rely on DVI monitors, which remain common in corporate labs, government offices, and engineering environments — will find this desktop KVM unit covers their needs without unnecessary complexity. Home office professionals who invested in quality DVI displays and have no reason to replace them will appreciate the clean, no-software setup that works across Windows, macOS, and Linux without any configuration. Government and public-sector procurement teams benefit directly from the TAA-compliant design, which removes a compliance hurdle that disqualifies many competing products. Anyone currently juggling two keyboards, two mice, and two sets of speakers will notice an immediate improvement in desk organization and workflow once this DVI KVM switch is in place.

Not suitable for:

If your monitors use HDMI or DisplayPort connectors, the StarTech SV231DVIUA 2-Port DVI KVM Switch simply is not the right tool — no adapter will make this a modern-display solution, and you would be better served by a purpose-built switch for those interfaces. Buyers hoping to use the built-in USB hub as a reliable docking station for external drives, drawing tablets, or other power-hungry USB devices will likely be disappointed, as real-world feedback consistently flags hub instability with anything beyond basic peripherals. Anyone who expects flawless audio switching will want to manage expectations, since the 3.5mm audio handoff has a documented tendency to lag or occasionally miss the switch entirely. If you need to support more than two computers, this two-port design offers no expansion path whatsoever. And if you are building a new desk setup from scratch today with current-generation hardware, spending on a DVI-only switch is a short-sighted investment regardless of how well this particular unit performs.

Specifications

Model Number: The unit is officially designated SV231DVIUA by StarTech.
Video Ports: Two DVI-I ports connect to the source computers, supporting both digital and analog DVI signals.
Console Connections: A single USB keyboard and USB mouse connect to the console side for shared peripheral control.
Max Resolution: Video output supports up to 1920x1200 pixels, covering standard widescreen and 16:10 professional display formats.
Switching Methods: Users can toggle between computers using a front-panel push button or a keyboard hot-key sequence.
Audio Support: Integrated 3.5mm stereo audio jacks allow a single headset or speaker set to follow the active computer.
USB Hub: A built-in USB 2.0 hub provides six downstream ports for connecting additional peripherals to the active computer.
Driver Requirement: No software installation or drivers are required; the switch operates as a plug-and-play device on all supported operating systems.
OS Compatibility: The switch is OS independent and has been verified to work with Windows, macOS, and Linux without configuration.
TAA Compliance: This unit is Trade Agreements Act compliant, making it eligible for U.S. federal government and institutional procurement.
Dimensions: The unit measures 3.94 x 6.3 x 1.57 inches, keeping its desk footprint minimal.
Weight: The switch weighs 1.43 pounds, light enough to mount or reposition without tools.
IP Rating: An IP54 rating indicates the enclosure is protected against dust ingress and splash water from any direction.
Operating Temperature: The switch is rated for continuous operation in environments up to 40 degrees Celsius.
Power Requirements: The unit draws up to 1.5 amps at 25 volts and does not require a separate external power adapter for standard operation.
Color & Material: The enclosure is black with a metal contact construction and a physical push-button actuator on the front panel.
Availability Date: The product was first made available in February 2011 and remains in active production as of the current date.
Package Contents: The package includes one KVM switch unit; cables are sold separately and are not included in the box.

Related Reviews

StarTech SV231DPDDUA2 Dual-Monitor DisplayPort KVM Switch

68%

Video Output Quality

Dual-Monitor Switching

Compatibility

Hotkey Switching Reliability

USB Hub Performance

StarTech SV231USB 2-Port VGA USB KVM Switch

81%

Switching Reliability

Setup & Out-of-Box Experience

Video Quality

Compatibility

Value for Money

Seiryruc 2-in-3-Out 4K HDMI KVM Switch

71%

Setup & Installation

Video Signal Quality

Switching Method & Speed

USB Peripheral Sharing

Display Mode Flexibility

BolAAzuL 2-Port HDMI 2.1 KVM Switch

84%

Value for Money

Video Quality

Ease of Setup

Build Quality

Usability and Controls

ANXQQ HDMI 2.1 KVM Switch 8K@60Hz 2 Port with Wired Control

86%

Video Quality

Ease of Use

Value for Money

Compatibility

USB Support

ienRon 6-Port 2.5Gb PoE Switch with 2-Port 10Gb SFP+

85%

Performance

Ease of Setup

PoE Power Delivery

Build Quality

Fanless Operation

IOGEAR 2-Port DVI KVMP Switch GCS1102

86%

Value for Money

Setup & Installation

Switching Performance

Build Quality

Compatibility with Devices

IOGEAR 2-Port USB DisplayPort KVM Switch

85%

Ease of Use

Display Quality

Build Quality

Compatibility with Mac and Windows

Setup Process

IOGEAR GCS32HU 2-Port HDMI KVM Switch

72%

Ease of Setup

Switching Reliability

Value for Money

Build Quality

Cable Length & Reach

JideTech 2-Port USB VGA KVM Switch

83%

Ease of Use

Video and Audio Performance

Setup and Installation

Build Quality

Compatibility

FAQ

No, nothing to install. The StarTech SV231DVIUA 2-Port DVI KVM Switch is fully plug-and-play — connect your computers and peripherals, power everything on, and it works. Windows, macOS, and Linux all recognize it without drivers.

The default sequence is pressing the Scroll Lock key twice in quick succession, followed by either 1 or 2 to select the target computer. This is a standard StarTech convention and cannot be remapped on this model.

Unfortunately, no. This desktop KVM unit only supports DVI connections on the computer side. If your monitors use HDMI or DisplayPort, you would need a different switch designed for those interfaces — passive adapters typically do not resolve the incompatibility reliably.

Technically yes, but in practice it is hit or miss. The built-in hub works reliably for simple devices like keyboards, mice, and flash drives, but several users report that power-hungry or high-bandwidth devices like external hard drives fail to mount consistently. For anything beyond basic peripherals, a dedicated USB hub is a safer bet.

It is supposed to switch automatically alongside the video and USB, but real-world performance is inconsistent. Most users find it works fine, but a noticeable subset report a lag between the video switching and the audio following, and a smaller group say audio occasionally stays stuck on the previous computer until they replug the cable.

Yes, this is a documented complaint from multiple users. On cold boot, the switch sometimes fails to pass the correct display information to the monitor, causing it to default to a lower resolution. A simple workaround is to restart or wake the target computer after the switch and monitor are already powered on, which usually triggers correct resolution detection.

Yes, this unit is TAA compliant, which means it meets the requirements of the U.S. Trade Agreements Act and qualifies for federal government and other public-sector procurement. StarTech officially lists this compliance on the product, so it should satisfy standard government purchasing requirements without additional waivers.

No. This is a fixed two-port unit with no daisy-chain or expansion capability. If you need to control three or more computers from a single desk, you would need a different model with more ports.

Cables are not included. You will need two DVI cables to connect each computer to the switch, two USB Type-A cables for the keyboard and mouse passthrough on the computer side, and 3.5mm audio cables if you want to use the audio switching feature. The console side uses standard USB for the keyboard and mouse.

That depends entirely on your monitor situation. If you have two DVI monitors and need a reliable, no-fuss KVM switch, the StarTech two-port switch still does the job well and the long production run actually suggests it has stood the test of time. But if you are building a new setup or have any modern monitors, the DVI-only design is a genuine limitation that newer alternatives do not have.