Glossary / USB-C
PDO (Power Delivery Object)
One power profile a charger offers during USB-PD negotiation.
A PDO (Power Delivery Object) is a single power profile a USB-C charger advertises during Power Delivery negotiation — a specific voltage and maximum current, such as 20 V at 5 A (100 W). The device requests the PDO it wants, and the agreed pair becomes the power contract. Cablyst's PD Contract Inspector lists every PDO a charger offered and the one your Mac actually accepted.
See it on your own cable — install Cablyst, check a cable, or browse the full glossary.
Related: E-marker USB Power Delivery (USB-PD) Extended Power Range (EPR, 240 W) Thunderbolt 4 Thunderbolt 5 USB4 DisplayPort Alt Mode VDO (Vendor Defined Object) USB-IF (USB Implementers Forum) SOP' (cable plug identity) UHBR (Ultra High Bit Rate) Active vs. passive cable