Today, we used the POWER-Z CT001 USB-C Cable Tester to examine the original dual USB-C fast-charging cable included with the vivo X300 Ultra. The tester can identify pin continuity without cutting open the cable.
Pins detected on the B-side USB1 connector: B1 (GND), B4 (VBUS), B5 (CC2), B9 (VBUS), and B12 (GND).
Pins detected on the A-side USB2 connector: A12 (GND), A9 (VBUS), A7 (D−), A6 (D+), A5 (CC1), A4 (VBUS), and A1 (GND).
Also Read: ChargerLAB POWER-Z CT001 USB Cable Tester – Easy and Precise Fault Pin Identification
The cable has complete VBUS and GND power connections, allowing it to carry high charging currents. Both CC1 and CC2 channels are present. Together with the built-in E-Marker chip, the cable can properly initiate high-voltage fast-charging negotiation and supports both proprietary fast charging and USB PD.
The D+ and D− lines are also connected, enabling USB 2.0 basic file transfer.
During testing, no TX/RX high-speed differential pairs or SBU video channels were detected. This indicates that the cable is designed mainly for charging and basic data communication. It does not support USB 3 high-speed data transfer or DisplayPort video output.
Before hardware testing, the POWER-Z CT001 can be used to verify cable wiring and prevent missing connections from affecting test results.