USB-C Alt Mode DisplayPort ↔ Serial (DB-9)
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://cablefyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://cablefyi.com/entity//Add a dynamic SVG badge to your README or docs.
[](https://cablefyi.com/entity//)Use the native HTML custom element.
Compatibility check and signal path analysis
Adapter Required
These connectors are not directly compatible. An adapter or converter cable is needed.
Signal Path
USB-C Alt Mode DisplayPort
Family
DisplayPort
Form Factor
Oval symmetric (USB-C)
Pin Count
24
Reversible
Yes
Serial (DB-9)
Family
Legacy Data
Form Factor
D-sub 9-pin
Pin Count
9
Reversible
No
Notes
USB-C Alt Mode DisplayPort to Serial (DB-9): DisplayPort carries video; legacy data connectors carry serial/parallel data. The USB-C Alt Mode DisplayPort (DisplayPort) and Serial (DB-9) (Legacy Data) are from different connector families.