Side-by-Side Comparison
USB
USB 1.1 vs. USB 3.2 Gen 1
Comparing 2 standards across 8 specifications. 8 key differences identified.
Comparing:
USB 1.1
USB 3.2 Gen 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 The original USB 1.0 from January 1996 saw little real-world adoption before 1.1 quickly superseded it.
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 | ||
|---|---|---|
|
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 3.0 (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 |
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