USB 1.1 vs. USB-B
Comparing 2 standards across 8 specifications. 8 key differences identified.
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 The original USB 1.0 from January 1996 saw little real-world adoption before 1.1 quickly superseded it.
USB-B (Standard-B) is the squarish connector historically used on printers, scanners, and external hard drives -- the peripheral-side counterpart to USB-A. A 9-pin SuperSpeed variant with a distinctive stacked upper tab was added for USB 3.0, though USB-C has since displaced Standard-B in most new peripheral designs.
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) | — |
|
Pin Count
|
— | 4 (USB 1.x/2.0) or 9 (USB 3.0+, stacked SuperSpeed tab) |
|
Standard Base Dimensions
|
— | ~11.1 x 7.0 mm |
|
Reversible
|
— | No |
|
Typical Role
|
— | Peripheral-side port (printers, scanners, external drives) |