With the upgrade of USB versions from 2.0 to 3.0 or later, transmission efficiency has significantly improved. USB 3.0 and later versions utilize spread spectrum clocking to boost transmission rates, which generates 2.4GHz signals near the USB port. This may cause interference with wireless transmitters and Bluetooth receivers operating on the same frequency.

Affected Devices

Wireless devices operating on the 2.4GHz band, including:

  • Wi-Fi routers

  • Bluetooth peripherals

  • Wireless keyboards and mice

Symptoms

Interference may result in:

  • Slower wireless speeds

  • Increased latency

  • Intermittent disconnections

  • Complete loss of connection

Solutions

To mitigate interference, consider the following steps:

  1. Exchange with another USB device: Try using a different USB device.

  2. Distance the device: Move one of the USB devices farther away from the other.

  3. Switch the frequency: Use wireless devices on the 5GHz band instead of the 2.4GHz band if possible.


- Signal interference between USB 3.0 and 2.4GHz wireless devices

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- Move one of the USB devices farther away from the other

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