USB 3.2 Gen 2x2 vs. USB-C
Comparing 2 standards across 9 specifications. 9 key differences identified.
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.
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.
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 |