# item.guide
Side-by-Side Comparison USB

USB 2.0 vs. USB 3.2 Gen 2

Comparing 2 standards across 7 specifications. 7 key differences identified.

Comparing:
USB 2.0
USB 3.2 Gen 2

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.

View full USB 2.0 spec sheet →

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.

View full USB 3.2 Gen 2 spec sheet →

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)