Not only can you find plenty of wired keyboards today, but you'll even find high-end options with no wireless protocol available.
If you've ever hooked up a Bluetooth speaker or pair of earbuds to watch a video and noticed that the audio was out of sync, you've experienced that latency.
Many keyboards also include a 2.4GHz connection, which usually needs plugging a small dongle into your computer's USB port.
If you're choosing between a wired and Bluetooth connection, the wired option will invariably be the better option in terms of performance.
In terms of keyboards, a Bluetooth connection may introduce as little as 8 milliseconds of latency but can top out at over 200 milliseconds, which is enough to make many games unplayable.
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Summarized version
In terms of keyboards, a Bluetooth connection may introduce as little as 8 milliseconds of latency but can top out at over 200 milliseconds, which is enough to make many games unplayable.
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Headline as published: Wired vs. wireless keyboards: Is there really a difference in performance?
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In our wireless world, with Bluetooth available on nearly every device, it's easy to wonder why USB wired keyboards still exist. Not only can you find plenty of wired keyboards today, but you'll even find high-end options with no wireless protocol available. Performance-focused gaming keyboards are the least likely to have a wireless option, a fact that underscores the main issue wired devices avoid: performance problems.
Bluetooth is well-known for its latency. If you've ever hooked up a Bluetooth speaker or pair of earbuds to watch a video and noticed that the audio was out of sync, you've experienced that latency. Mouse clicks and keypresses sent over Bluetooth can take a few extra milliseconds to reach your computer.
Musicians using keyboards for input with a digital audio workstation may also need lower latency for precise timing.
Many keyboards also include a 2.4GHz connection, which usually needs plugging a small dongle into your computer's USB port. 2.4GHz is much faster than Bluetooth and often acceptable for gaming and other low-latency tasks.
If you're choosing between a wired and Bluetooth connection, the wired option will invariably be the better option in terms of performance. For instance, listening to music through AirPods will never sound as good as plugging in a pair of wired headphones, and both gaming mice and headsets are subject to the same latency concerns as keyboards. In terms of keyboards, a Bluetooth connection may introduce as little as 8 milliseconds of latency but can top out at over 200 milliseconds, which is enough to make many games unplayable.
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