Information about different types of USB interfaces and what speeds should be expected.*END
Universal Serial Bus (USB) is an interface standard that define how two devices work with each other.
Typical Real World Speed will vary by hardware, connection, operating system, number, type of files, and folder structure.
Need more help?
- Answer ID 17047: Common Causes of Slow External and USB Flash Drive Performance and Data Transfer Rates
- Answer ID 19820: Common Causes and Solutions of Slow Data Backups and Transfer Speeds
USB Standards, Port Types and Speed
| Standard | Known As | Connector Types | Theoretical Max Speed | Typical Real World Speed |
|---|---|---|---|---|
| USB 1.1 | Full Speed USB | USB-A USB-B |
12 Mbps (1.5 MB/s) |
- |
| USB 2.0 | Hi-Speed USB | USB-A USB-B USB Micro A USB Micro B USB Mini A USB Mini B USB-C |
480 Mbps (60 MB/s) |
240 Mbps (30 MB/s) |
| USB 3.2 Gen 1 | USB 3.0 USB 3.1 Gen 1 SuperSpeed |
USB-A USB-B USB Micro B USB-C |
5 Gbps (625 MB/s) |
3.2 Gbps (400 MB/s) |
| USB 3.2 Gen 2 | USB 3.1 USB 3.1 Gen 2 SuperSpeed+ SuperSpeed 10Gbps |
USB-A USB-B USB Micro B USB-C |
10 Gbps (1250 MB/s) |
7.2 Gbps (900 MB/s) |
| USB 3.2 Gen 2x2 | USB 3.2 SuperSpeed 20Gbps |
USB-C | 20 Gbps (2500 MB/s) |
16 Gbps (2000 MB/s) |
