The maximum cable length for USB 3.0 using a non-twisted pair wire is _____.

The maximum cable length for USB 3.0 using a non-twisted pair wire is _____.

• A. 3 meters
• B. 1 meter
• C. 5 meters
• D. 10 meters

Answer: (A)

High-speed USB 3.0 relies on precise timing on the SuperSpeed differential pairs, so cable length is limited to preserve signal integrity. The specification sets about three meters as the maximum copper cable length for reliable SuperSpeed operation. Using non-twisted wire makes this worse, because lack of twisting increases noise, EMI, and skew, so you can’t safely extend beyond that limit. Longer runs would require repeaters or a different medium. Among the options, three meters is the maximum the standard supports for USB 3.0 copper cabling.

High-speed USB 3.0 relies on precise timing on the SuperSpeed differential pairs, so cable length is limited to preserve signal integrity. The specification sets about three meters as the maximum copper cable length for reliable SuperSpeed operation. Using non-twisted wire makes this worse, because lack of twisting increases noise, EMI, and skew, so you can’t safely extend beyond that limit. Longer runs would require repeaters or a different medium. Among the options, three meters is the maximum the standard supports for USB 3.0 copper cabling.