Buying Guide
The Best KVM Switches Under $100: Picks and Trade-offs
We looked at 4 KVM switches under $100 side by side, with the trade-offs that separate them and who each one suits.
By Jamie Cole, Lead Product Researcher
7 min read4 products evaluated
We may earn a commission from purchases made through links in this guide. Learn more.
Under $100, KVM switches move beyond a single shared monitor into genuine dual-monitor extend and mirror modes, and one pick in this comparison scales to four separate computers rather than the two-computer limit common at cheaper tiers.
We compared this lineup on whether dual-monitor support is real extend mode or just duplicated mirroring, how many computers each switch can realistically manage, and USB-C port inclusion for modern peripherals, since at this price the meaningful differences are about scale and display flexibility, not just resolution.
Quick Picks
Our 4 recommendations at a glance. Tap a pick for the full verdict.
Best Overall
UGREEN HDMI KVM Switch, 2 Monitors 2 Computers
Buyers who want genuine dual-monitor extend mode with broad USB compatibility
Our take Check price for UGREEN HDMI KVM Switch, 2 Monitors 2 Computers (opens in a new tab)
Best Value Dual Monitor
Heravo USB 3.0 HDMI KVM Switch, 2 Monitors 2 Computers
Buyers who want dual-monitor switching with EDID stability at a lower price
Our take Check price for Heravo USB 3.0 HDMI KVM Switch, 2 Monitors 2 Computers (opens in a new tab)
Best for 4 Computers
HDMI Displayport KVM Switch, 4 Computers 2 Monitors
Buyers who need to manage four separate computers from a shared dual-monitor desk setup
Our take Check price for HDMI Displayport KVM Switch, 4 Computers 2 Monitors (opens in a new tab)
Best Trusted Brand Value
IOGEAR 2-Port Full HD KVM Switch (GCS32HU)
Buyers who want a simple, reliable single-monitor switch without dual-monitor complexity
Our take Check price for IOGEAR 2-Port Full HD KVM Switch (GCS32HU) (opens in a new tab)
Our Picks
Best Overall1 of 4
UGREEN HDMI KVM Switch, 2 Monitors 2 Computers on Amazon (opens in a new tab)
0 ports (3 USB-A, 1 USB-C) cover both modern and legacy peripherals without needing an adapter.
Best for
- Buyers who want genuine dual-monitor extend mode with broad USB compatibility
Why we like it
UGREEN's listing is specific and transparent about setup requirements, each computer needs 2 HDMI cables plus 1 USB-A cable connected to work properly, and the two monitors can only show one computer's output at a time, details that help set accurate expectations before purchase.
Best for buyers who want genuine dual-monitor extend mode with broad USB-An and USB-C compatibility.
Key dimensions & specs
- 2-port HDMI KVM, 2 monitors per computer, 4K@60Hz
- 4 USB 3.0 ports (3x USB-A, 1x USB-C)
- Extend and mirror display modes, HDR10+ support
Pros
- Genuine dual-monitor extend mode, not just mirroring
- Broad USB-An and USB-C port coverage
- Transparent setup requirements clearly documented
Cons
- No EDID emulation support per the listing
- Requires each computer to have 2 HDMI outputs, not adaptable from single-HDMI laptops easily
Best Value Dual Monitor2 of 4
Heravo USB 3.0 HDMI KVM Switch, 2 Monitors 2 Computers on Amazon (opens in a new tab)
0 port configuration, positioning it as a genuine budget alternative for buyers who want dual-monitor KVM switching without paying the full UGREEN price.
Best for
- Buyers who want dual-monitor switching with EDID stability at a lower price
Why we like it
2 compatibility for protected content playback.
Best for buyers who want dual-monitor KVM switching with adaptive EDID stability at a lower price than the UGREEN pick.
Key dimensions & specs
- 2-port HDMI KVM, 2 monitors per computer, 4K@60Hz
- 4 USB 3.0 ports (3x USB-A, 1x USB-C)
- Adaptive EDID technology, HDCP 2.2 compatible
Pros
- $10 cheaper than the UGREEN pick with a similar core spec sheet
- Adaptive EDID technology explicitly addresses flicker issues
- Same 4 USB 3.0 port configuration as the pricier pick
Cons
- Requires 6 HDMI cables total for full dual-monitor setup, not included
- Less established brand recognition than UGREEN
Best for 4 Computers3 of 4
HDMI Displayport KVM Switch, 4 Computers 2 Monitors on Amazon (opens in a new tab)
This is the only pick in this comparison that scales to four separate computers rather than two, sharing one keyboard, one mouse, and two monitors across all four sources, with support up to 8K@60Hz on the HDMI side and 4K@144Hz on the DisplayPort side.
Best for
- Buyers who need to manage four separate computers from a shared dual-monitor desk setup
Why we like it
Its combination of HDMI and DisplayPort inputs gives more flexibility for connecting a mix of computer types than an HDMI-only switch, and both button and wired controller switching methods let you choose between quick desk access and a hidden, tidy setup.
Best for buyers who specifically need to manage four separate computers from one shared keyboard, mouse, and dual-monitor setup.
Key dimensions & specs
- 4-computer, 2-monitor KVM, 8K@60Hz (HDMI) / 4K@144Hz (DisplayPort)
- 4 USB 3.0 ports, 5Gbps transfer speed
- Extended and copy display modes, button and wired controller switching
Pros
- Only pick here scaling to four separate computers
- Mixed HDMI and DisplayPort inputs for flexible source compatibility
- High resolution ceiling up to 8K@60Hz on HDMI
Cons
- Each computer with discrete and integrated graphics needs both ports on the discrete card
- Requires more cables and setup complexity than a simple 2-computer switch
Best Trusted Brand Value4 of 4
IOGEAR 2-Port Full HD KVM Switch (GCS32HU) on Amazon (opens in a new tab)
For buyers exploring this $100-ceiling comparison who don't actually need dual-monitor or 4-computer support, this established IOGEAR pick delivers reliable single-monitor, 2-computer switching at less than half the price of the dual-monitor picks above.
Best for
- Buyers who want a simple, reliable single-monitor switch without dual-monitor complexity
Why we like it
Its molded-in cables and travel-friendly compact design suit a simpler single-monitor desk setup or an IT professional who needs to carry a switch between locations, without the added cable complexity that dual-monitor and 4-computer switches require.
Best for buyers who want a simple, reliable single-monitor switch and don't need dual-monitor or multi-computer scaling.
Key dimensions & specs
- 2-port HDMI KVM, up to 1920x1200 resolution
- Molded-in USB 2.0 and HDMI cables (built into unit)
- Compact travel-friendly design
Pros
- Established brand at less than half the price of dual-monitor picks
- Molded-in cables eliminate loose cable clutter
- Simpler setup than dual-monitor or 4-computer alternatives
Cons
- Single monitor only, not dual-monitor like the other picks here
- Maximum 1920x1200 resolution, not 4K
How We Chose These KVM Switches Under $100
Each pick was assessed across 5 criteria weighted for real-world use.
- Genuine Dual-Monitor Extend vs Mirror-Only
- Checked which picks support true extend mode across two monitors versus only mirroring the same image, a meaningful functional difference.
- Noted which pick in this comparison scales to four computers rather than the standard two-computer limit found elsewhere.
- Compared which switches include a USB-C port alongside USB-A for modern peripheral compatibility.
- Setup Complexity and Cable Requirements
- Assessed how many cables and connections each switch realistically requires for full functionality, since dual-monitor and 4-computer setups add real complexity.
- Value Relative to Feature Scope
- Weighed each pick's price against whether its feature set (dual-monitor, multi-computer) matches what a given buyer actually needs.
What to Look for in a KVM Switch Under $100
Key buying criteria so you get the right fit the first time.
Extend Mode and Mirror Mode Serve Different Purposes on a Dual-Monitor KVM Switch
Extend mode lets each of your two monitors show different content, effectively giving you the same expanded desktop experience you'd have with monitors plugged directly into one computer, while mirror mode duplicates the identical image on both screens, useful mainly for presentations or a shared secondary display. Before choosing a dual-monitor KVM switch, confirm it explicitly supports extend mode if that's your actual goal, since some cheaper switches marketed as "dual monitor" only support mirroring.
Scaling to Four Computers Requires Meaningfully More Cables and Careful Graphics Card Configuration
A 4-computer KVM switch, like the pick in this comparison, requires connecting HDMI and DisplayPort cables from each of the four separate computers, and on machines with both discrete and integrated graphics cards, both video ports need to come from the discrete card specifically for the setup to work as advertised. This added complexity is worth the tradeoff only if you need to manage four separate systems regularly, not as a default choice over simpler options.
A USB-C Port Alongside USB-A Ports Future-Proofs Your Peripheral Connections
Many newer peripherals, external drives, and docking accessories now use USB-C connectors, and a KVM switch offering at least one USB-C port alongside the more common USB-A ports, like several picks in this comparison, means you won't need a separate USB-C to USB-An adapter for these devices. If you've noticed more of your accessories shipping with USB-C cables recently, prioritize a switch with this port included rather than an all-USB-A design.
Two Similarly Specced Switches Can Have a Real Price Difference Worth Investigating
0 ports, 4K@60Hz, yet differ by $10 in price, generally reflecting brand recognition and stated feature details like adaptive EDID technology rather than a fundamental hardware difference. When two listings look nearly identical on paper, read the specific feature descriptions closely rather than assuming the pricier one is automatically better.
Simpler, Cheaper Options Remain Valid Even in a Comparison Focused on Dual-Monitor Switches
Not every buyer researching KVM switches in this price range actually needs dual-monitor or multi-computer support, and an established single-monitor switch like the IOGEAR pick in this comparison can serve a straightforward two-computer, one-monitor desk setup reliably for significantly less money. Resist the pull toward the most feature-rich option in a comparison if your actual daily setup doesn't require those extra capabilities.
How to Choose a KVM Switch Under $100
| Genuine dual-monitor extend mode with broad USB support | UGREEN HDMI KVM Switch, 2 Monitors 2 Computers |
|---|---|
| Dual-monitor switching at a lower price | 0 HDMI KVM Switch, 2 Monitors 2 Computers |
| HDMI Displayport KVM Switch, 4 Computers 2 Monitors |
2-Computer Dual-Monitor vs 4-Computer Setup
- 2-Computer Dual-Monitor (UGREEN or Heravo)
- Simpler setup with fewer cables, ideal if you regularly switch between exactly two computers and want each to drive two separate monitors.
- 4-Computer Setup (HDMI Displayport pick)
- Scales to four separate machines sharing the same dual-monitor desk, worth the added cable complexity if you manage that many systems.
Most home offices only need 2-computer switching. The 4-computer pick is worth its added complexity specifically for IT professionals or power users managing multiple systems.
| IOGEAR 2-Port Full HD KVM Switch | |
| Dual monitors for each computer | UGREEN, Heravo, or the 4-Computer HDMI Displayport pick |
For IT Professionals Managing Multiple Systems Specifically
- A switch that scales beyond two computers, with mixed HDMI and DisplayPort input options for connecting varied hardware.
- The HDMI Displayport KVM Switch, 4 Computers 2 Monitors is specifically built for managing more systems than the standard 2-computer limit.
- You need to manage four separate computers from one desk, where the HDMI Displayport 4-Computer pick is the only option here supporting this scale.
- A single monitor and two computers cover your needs, where the IOGEAR GCS32HU costs less than half of the dual-monitor picks in this comparison.
Frequently Asked Questions
Do I need identical monitors for the dual-monitor extend mode to work properly?
No, the monitors don't need to be identical models, though both should support the resolution and refresh rate you intend to use, since a significant mismatch in capabilities between the two monitors could limit your overall dual-monitor experience to the lower-capability display.
Can I connect a laptop to the 4-computer KVM switch if it only has one HDMI output?
For the dual-monitor 4-computer configuration, each computer typically needs 2 video outputs (HDMI and/or DisplayPort) to drive both monitors; a laptop with only a single HDMI output would need a USB-C to DisplayPort or similar adapter to provide the second video connection, if its USB-C port supports video output.
What's the practical difference between the UGREEN and Heravo dual-monitor switches given their similar specs?
Is the IOGEAR switch's 1920x1200 resolution good enough for general office work?
Yes, 1920x1200 comfortably handles general office tasks like word processing, spreadsheets, web browsing, and video calls; it's only a meaningful limitation if you specifically need 4K resolution for detailed photo or video editing work.
How many total cables do I need for the full 4-computer, 2-monitor KVM switch setup?
0 cable, meaning a fully connected setup requires roughly 12 video cables plus 4 USB cables in total, a meaningfully more complex cable management task than a simple 2-computer switch.
Will switching between computers on these dual-monitor KVM switches interrupt an active video call?
Yes, switching the KVM to a different computer will disconnect whatever active session (including video calls) is running on the previously active computer's displays, since the monitors, keyboard, and mouse all redirect to the newly selected computer.
Bottom Line
Best overall: UGREEN HDMI KVM Switch, 2 Monitors 2 Computers — best overall pick in this roundup. See the full verdicts above for every pick, with pros, cons and who each one suits.
Browse all kvm switches under $100 on Amazon — Prime-eligible options with current pricing.