# item.guide
Side-by-Side Comparison USB

USB 3.2 Gen 2x2 vs. USB-C

Comparing 2 standards across 9 specifications. 9 key differences identified.

Comparing:
USB 3.2 Gen 2x2
USB-C

USB 3.2 Gen 2x2, part of the USB 3.2 specification released in September 2017, is the only tier in the 3.2 family that's genuinely new hardware rather than a renamed predecessor -- it doubles Gen 2's 10 Gbit/s by running two lanes simultaneously, reaching 20 Gbit/s, but only over USB-C connectors and cables wired for it.

View full USB 3.2 Gen 2x2 spec sheet →

USB-C is the reversible, oval 24-pin connector now used across USB 2.0 through USB4 and Thunderbolt. It's the only connector required for USB4, and under EU law it became mandatory on most new phones, tablets, and cameras sold in the EU by the end of 2024, with laptops following by April 2026.

View full USB-C spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
Released
September 2017
Max Bandwidth / Data Rate
20 (2 lanes x 10 Gbit/s each) Gbit/s
Connector Required
USB-C only (dual-lane wiring not present in USB-A/B)
Marketing Name
USB 20Gbps
Pin Count
24 (symmetrical, double-sided)
Standard Base Dimensions
~8.34 x 2.56 mm
Reversible
Yes
EU Mandate (phones/tablets/cameras)
End of 2024 (Directive 2022/2380)
EU Mandate (laptops)
April 28, 2026