# item.guide
Side-by-Side Comparison USB

USB 1.1 vs. USB 3.2 Gen 2

Comparing 2 standards across 8 specifications. 8 key differences identified.

Comparing:
USB 1.1
USB 3.2 Gen 2
USB 1.1 →

USB 1.1, released in September 1998, was the first widely adopted USB standard -- 12 Mbit/s Full Speed for most peripherals, with a 1.5 Mbit/s Low Speed mode for mice and keyboards. The original USB 1.0 from January 1996 saw little real-world adoption before 1.1 quickly superseded it.

View full USB 1.1 spec sheet →
USB 3.2 Gen 2 →

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

8 Parameters
Parameter / Spec
USB 1.1
USB 3.2 Gen 2
Released
September 1998 —
Full Speed
12 Mbit/s —
Low Speed
1.5 Mbit/s —
Predecessor
USB 1.0 (January 1996, limited real-world adoption) —
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)

Other Alternatives to Compare

Compare USB 1.1 vs. Micro-USB → Compare USB 1.1 vs. Mini-USB → Compare USB 1.1 vs. USB 2.0 → Compare USB 1.1 vs. USB 3.2 Gen 1 → Compare USB 1.1 vs. USB 3.2 Gen 2x2 → Compare USB 1.1 vs. USB Power Delivery → Compare USB 1.1 vs. USB-A → Compare USB 1.1 vs. USB-B → Compare USB 1.1 vs. USB-C → Compare USB 1.1 vs. USB4 → Compare USB 1.1 vs. USB4 2.0 →