Maximum length of the cable for applications in USB Type-C
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What is the maximum cable length that can be used in Type-C applications?
The USB Type-C specification provides the appropriate length for all types of USB Type-C cable assemblies based on cable performance requirements. Always use USB-IF certified cables for the required performance.
USB Type-C specification recommends a maximum cable length of 4 meters for passive cables. However, depending on the power delivery and data rate length of the type-c cable can be reduced.
The following tables provide the recommended length for each Type-C standard assemblies:
- Standard Cable Assemblies
- Legacy Cable Assemblies
- USB Type-C Standard Cable Assemblies
USB Type-C Standard Cable Assemblies
Connector type |
USB Version |
Cable length |
Current Rating |
USB Power Delivery USB-PD 2.0 |
USB Type-C Electronically marked |
Type-C to Type-C |
USB 2.0 |
< 4m |
3 A |
Supported |
Optional |
5A |
Required |
||||
Type-C to Type-C |
USB 3.1 Gen1 |
≤ 2 m |
3 A |
Supported |
Required |
5A |
Required |
||||
Type-C to Type-C |
USB 3.1 Gen2 |
≤ 1 m |
3 A |
Supported |
Required |
5 A |
Required |
USB Type-C Legacy Cable Assemblies
Connector type |
USB Version |
Cable length |
Current Rating |
USB Type-C Electronically marked |
USB Standard A to USB Type-C |
USB 2.0 |
< 4m |
3 A |
Optional |
USB PD Standard-A to USB Type- C |
5 A |
Required |
||
USB Standard-A to USB Full-Featured Type-C |
USB 3.1 Gen2 |
≤ 1 m |
3A |
Optional |
USB PD Standard-A to USB Full-Featured Type-C |
5A |
Required |
||
USB Type-C to USB Standard-B |
USB 2.0 |
< 4m |
3 A |
Optional |
USB Type-C to USB PD Standard-B |
5A |
Required |
||
USB Full-Featured Type-C to USB Standard-B |
USB 3.1 Gen2 |
< 1m |
3 A |
Optional |
USB Full-Featured Type-C to USB PD Standard-B |
5 A |
Required |
||
USB Type-C to USB Mini-B |
USB 2.0 |
< 4m |
500 mA |
Optional |
USB Type-C to USB PD Micro-B |
USB 2.0 |
< 2 m |
3 A |
Optional |
USB Full-Featured Type-C to USB PD Micro-B |
USB 3.1 Gen2 |
< 1m |
3A |
Optional |
USB Type-C Legacy Adapter Assemblies
Connector type |
USB Version |
Cable length |
Current Rating |
USB Legacy Receptacle Type |
USB Type-C Electronically marked |
USB Type-C to USB Micro-B |
USB 2.0 |
< 0.15 m |
3 A |
PD Receptacle Not Allowed |
Optional |
USB Full-Featured Type-C to USB Standard-A |
USB 3.1 Gen1 |
< 0.15 m |
3 A |
PD Receptacle Not Allowed |
Optional |
The information in the tables is derived from the USB Type-C specification. Refer to section 3.1 of the USB Type-C specification for more details.
Community Translation from Japaneese: USB Type-Cアプリケーション用ケーブルの最大の長さ – KBA204034 - Community Translated (JA)
- Tags:
- cable length
- Legacy Cable Assemblies
- Standard Cable Assemblies
- type-c
- Type-C applications
- usb 3.0 hub
- usb compliance test
- usb type-c
- USB Type-C Standard Cable Assemblies
- usb-c and power delivery