USB31CAADP: Reading a Part Number Like a Spec Sheet
Part numbers appear in searches because someone bought one and wants another. Decoding them beats guessing.
Quick Answer
| Segment | Usual meaning in USB part numbers |
|---|---|
| USB31 | USB 3.1 generation |
| CA | USB-C to USB-A |
| ADP | Adapter form |
Read as a whole: a USB 3.1, USB-C to USB-A adapter. Manufacturers vary the scheme, but this pattern covers most.
Decoding Other Listings
Generation first
31, 32 or Gen2 in the number tells you the data tier.
Connector codes
CA, AC, CC or similar pairs describe the ends in order.
Form factor
ADP, CAB, HUB or DOCK describe the product type.
Verify against the spec sheet
Part numbers are conventions, not standards. Confirm with the published specification.
Buying an Equivalent
- Extract the three facts: generation, ends, form.
- Match the speed tier you need.
- Check data and power ratings.
- Compare build quality at the strain points.
- Keep the part number for reordering.
Real-World Applications
- Reordering an adapter that worked well.
- Specifying parts across a fleet.
- Understanding competitor listings.
- Support documentation and procurement.
Related Guides
For the product itself, read USBA to USBC. For the cable form, see USB-A to USB-C. For speed generations, start with 3.1 USB-C.
FAQ
What is USB31CAADP?
A part number for a USB 3.1 USB-C to USB-A adapter.
Are part numbers standardised?
No. Each manufacturer has its own scheme.
How do I find an equivalent?
Decode the generation, ends and form, then match specifications.
Does the number tell me the speed?
Usually, via the generation segment. Confirm with the spec sheet.