
TM
Introduction to USB
USB 2.0 High-
speed
USB 1.1 Full-
speed
USB 2.0 Full-
speed
USB 1.1 Low-
speed
USB 2.0 Low-
speed
Spec
Vast bandwidth
improvements
Video, storage,
imaging
480 Mbps / 25-
400 Mbps
Moderate
performance;
guaranteed latency;
guaranteed
bandwidth
Printers, audio
devices, floppy
drives
12 Mbps / 5-10
Mbps
Low cost but limited
performance; type
and number of
endpoints are limited
Keyboard,
mouse, joystick
1.5 Mbps / 10-
100 Kbps
NotesApplicationsData Rate and
Performance
Current USB Speeds and Limitations
H
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Introduction to USB
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