# item.guide
Side-by-Side Comparison USB

USB 2.0 vs. USB 3.2 Gen 2x2

Comparing 2 standards across 6 specifications. 6 key differences identified.

Comparing:
USB 2.0
USB 3.2 Gen 2x2
USB 2.0 →

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 →
USB 3.2 Gen 2x2 →

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.

View full USB 3.2 Gen 2x2 spec sheet →

Specification Comparison Table

6 Parameters
Parameter / Spec
USB 2.0
USB 3.2 Gen 2x2
Released
April 2000 September 2017
High Speed
480 Mbit/s —
Backward Compatible
Yes (USB 1.x Full/Low Speed) —
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

Other Alternatives to Compare

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