Micro-USB vs. USB 3.2 Gen 2x2
Comparing 2 standards across 8 specifications. 8 key differences identified.
Micro-USB (Micro-B) was the dominant charging and data connector on non-Apple smartphones and small electronics from the late 2000s through the mid-2010s. Its USB 3.0 variant added a second, wider tab beside the standard 5-pin plug for extra SuperSpeed pins -- a design most phone makers skipped, keeping plain USB 2.0 Micro-B nearly universal in practice.
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.
Specification Comparison Table
8 Parameters| Parameter / Spec | ||
|---|---|---|
|
Pin Count
|
5 (USB 2.0) or 10 (USB 3.0, wider stepped shape) | — |
|
Standard Base Dimensions
|
~6.85 x 1.8 mm | — |
|
Reversible
|
No | — |
|
Status
|
Largely superseded by USB-C | — |
|
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 |