Hauv USB cov kab ntawv, cov xim thiab cov sawv cev ntawm txhua cov kab ntawv yog raws li nram no:
1. Liab sawv cev ntawm USB fais fab qaum, thiab cov cim qhia kev lag luam muaj feem ntau VCC, Fais fab, 5V, 5VSB
2. Ntsuab sawv cev tus ncej zoo ntawm USB cov kab ntawv, thiab cov cim kev cim yog feem ntau DATA +, USBD +, PD +, USBDT +
3. Dawb sawv cev tus ncej tsis zoo ntawm USB cov ntaub ntawv cable, thiab cov cim cim qhia feem ntau DATA-, USBD-, PD-, USBDT +
4. Dub sawv cev rau hauv av ntawm USB cov ntaub ntawv cable, thiab feem ntau ntawm cov cim cim yog GND thiab Hauv av
