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OLLGEN 4 Port USB 2.0 Sharing Manual Switch Box Hub 4 PCS Share Switcher 1 USB Device for Printer Scanner Camera Keyboard (4 Port)

When HN users recommended it

1 HN user recommended this between 2024 and 2026, in 2 comments.

20072026

Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.

What HN users said

m463 linked amazon.com View on HN

I have always found that KVM switches have side effects on USB devices.

So I use mechanical USB switches.

for keyboard and mouse, I use two of these:

https://www.amazon.com/dp/B01I0Y3GEE/

They have no extra keyboard/mouse latency, and no weird side effects like boot keys that don't work or modifier keys that are in the wrong state.

Issues I've had before with mouse/keyboard:

- hotkey conflicts

- mac boot keys break (hold down <key> for <some boot function>)

- modifiers stick in wrong state

- weird delays

- combinations with mouse+keyboard break

m463 again linked amazon.com View on HN

kvm usb switching is always broken, sometimes subtly, sometimes obvious

I use mechanical USB switches to individually switch USB lines like this:

https://www.amazon.com/dp/B01I0Y3GEE

one for keyboard, one for mouse

Problems it avoids

- cable speed usb

- no extra latency

- using boot-up hold-key-down sequences on macos works fine

- keyboard doesn't get hung in weird states

- no hotkey conflicts

- no mouse gets in weird state on one system that persists to another

etc etc etc

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