USB 2.0 vs. USB 3.2 Gen 2
Comparing 2 standards across 7 specifications. 7 key differences identified.
USB 2.0, released in April 2000, added a 480 Mbit/s High Speed mode on top of USB 1.x's rates -- a 40x jump that made USB viable for external hard drives and other high-throughput peripherals for the first time. It remains the fallback data rate on many budget cables and low-power devices today.
Originally released as USB 3.1 in July 2013, this 10 Gbit/s tier used more efficient 128b/132b encoding than USB 3.0's 8b/10b. It was renamed USB 3.2 Gen 2x1 in 2017 alongside USB 3.0's rename to Gen 1x1 -- both generations kept identical real-world hardware, with only the marketing name changing.
Specification Comparison Table
7 Parameters| Parameter / Spec | ||
|---|---|---|
|
Released
|
April 2000 | — |
|
High Speed
|
480 Mbit/s | — |
|
Backward Compatible
|
Yes (USB 1.x Full/Low Speed) | — |
|
Original Name
|
— | USB 3.1 Gen 2 (July 2013) |
|
Current Name
|
— | USB 3.2 Gen 2x1 (also marketed as "USB 10Gbps") |
|
Max Bandwidth / Data Rate
|
— | 10 Gbit/s |
|
Encoding
|
— | 128b/132b (more efficient than USB 3.0's 8b/10b) |