Your connections
Two computers connect over HDMI 2.1 to one screen. Each computer also needs the USB upstream connection shown in the diagram to share USB peripherals.
All switches
AV Access / Enthusiast
8KSW21-KVM
One screen. Higher refresh.
$159.99 USD
US listing checked November 10, 2026. Check availability. Taxes, shipping and current availability: confirm with the seller.
Check current manufacturer priceThe connection plan.
- Computers
- 2
- Shared screens
- 1
- Connection
- HDMI 2.1
- Advertised video mode
- 4K at 120 Hz
Confirm the exact display mode and cables. Manufacturer limits EDID emulation to 4K at 60 Hz and below.
Manufacturer specifications, not hands-on test results. Maximum modes depend on the full setup.Pay for what you use.
Is this the right
amount of switch?
Our value assessment interprets the listed connections and use case. It does not establish manufacturing cost, durability or tested performance.
What the price buys
You pay for HDMI 2.1 and 4K at 120 Hz on one shared screen, which matters when a smoother refresh rate is part of what you want.
- Worth considering when
- Worth it if two computers share one high-refresh monitor and you have confirmed the exact display mode and suitable HDMI 2.1 cables.
- Choose simpler when
- Skip it if 4K at 60 Hz is enough, or if you rely on EDID emulation above 4K 60 Hz, which the manufacturer limits.
A clearer connection.
Before you decide.
What does the price of the 8KSW21-KVM pay for?
You pay for HDMI 2.1 and 4K at 120 Hz on one shared screen, which matters when a smoother refresh rate is part of what you want.
Sources: avaccess.com
When is the 8KSW21-KVM worth considering?
Worth it if two computers share one high-refresh monitor and you have confirmed the exact display mode and suitable HDMI 2.1 cables. Skip it if 4K at 60 Hz is enough, or if you rely on EDID emulation above 4K 60 Hz, which the manufacturer limits.
Sources: avaccess.com
What should I check before buying the 8KSW21-KVM?
Confirm the exact display mode and cables. Manufacturer limits EDID emulation to 4K at 60 Hz and below.
Sources: avaccess.com
Complete your setup.
The switch is one part.
Check the rest.
A connection checklist for the 8KSW21-KVM. Start with what you own.
Inside the box
Not confirmed. Check the exact package contents on the official listing.
Match the exact setup
Cables rated for your target mode if you plan to use 4K at 120 Hz. EDID emulation is limited to 4K at 60 Hz and below. Check supplied cables first to avoid buying duplicates.
Optional upgrade: monitor arms or desk organization, only if your current stands and layout do not meet your needs. Check weight, VESA and desk attachment.
Verify package and connection diagram Explore setup accessoriesKeep exploring.
Other ways to connect.
A starting shortlist. Check the connection requirements before choosing.
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AV AccessKD-E10
Your laptop meets your desktop.
$152.99 USDOptional personalization stores a preference and viewed model IDs in this tab’s session storage. This personalization history is not uploaded. Turn it off to clear it. Privacy details