Micro-USB vs. USB 3.2 Gen 1
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.
Originally released as USB 3.0 in November 2008, this 5 Gbit/s "SuperSpeed" tier was retroactively renamed USB 3.2 Gen 1x1 when the USB 3.2 specification arrived in 2017 -- the first step in a naming scheme many found more confusing than clarifying, since the underlying hardware and speed never actually changed.
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Largely superseded by USB-C | — |
|
Original Name
|
— | USB 3.0 (November 2008) |
|
Current Name
|
— | USB 3.2 Gen 1x1 (also marketed as "USB 5Gbps") |
|
Max Bandwidth / Data Rate
|
— | 5 Gbit/s |
|
Introduced
|
— | SuperSpeed signaling, full-duplex architecture, 9-pin USB-A/B connectors |