Which interface standard is capable of data transfer rates up to 5 Gbps and was designed with improved power-management features over earlier versions of the same interface family?
USB 3.0, marketed as SuperSpeed USB, raises the maximum signaling rate to 5 Gbps-about ten times faster than the 480 Mbps High-Speed (USB 2.0) mode and far beyond the 12 Mbps Full-Speed (USB 1.1) ceiling. The 3.0 specification also adds link-power-management states (U0-U3) and increases the maximum bus power for a single device from 500 mA to 900 mA, enabling faster charging and more demanding peripherals while remaining backward-compatible with older USB hardware. Thunderbolt starts at 10 Gbps and therefore does not satisfy the 5 Gbps criterion, leaving SuperSpeed USB as the only standard that meets both conditions.
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