Does the DWL‑G122 need a 2.0 USB port to function?

No, the DWL-G122 does not need a USB 2.0 port to function. A USB1.1 port can be used, but when using a 1.1 port, throughput may bediminished. However, the DWL-G122 will not work with USB 1.0.

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