The USB group revealed plans to update USB 3.0 to 10 GBit/s, effectively putting it on par with one first-generation Thunderbolt channel. The USB 3.1 specification was released on 31 July 2013, introducing a faster transfer mode called SuperSpeed USB 10 GBit/s. The USB 3.1 standard increases the signaling rate to 10 GBit/s, double that of USB 3.0, and reduces line encoding overhead to just 3% by changing the encoding scheme to 128b/132b.\nThe USB 3.1 standard is backward compatible with USB 3.0 and USB 2.0. Using three power profiles of those defined in the USB Power Delivery Specification, it lets devices with larger energy demands request higher currents and supply voltages from compliant hosts up to 2 A at 5 V (for a power consumption of up to 10 W), and optionally up to 5 A at either 12 V (60 W) or 20 V (100 W).
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