wholesale USB C to USB C Cable supplier

This USB-C to USB-C charging cable is a high-speed charging solution for Type-C devices. Both sides of the cable are equipped with a reversible USB-C connector that fully supports USB Type-C smartphone data transfer and fast charging between tablets and laptops. Simply connect the cable to a USB device and a compatible USB-C power adapter for quick and easy charging.

Reversible USB-C connector, regardless of the pros and cons, easy to plug in and use the USB-C standard, compatible with Type-C smartphones, tablets,laptops and power supplies. The original charger USB C cable is available on both ends, allowing you to charge between two USB or sync devices that support Type-C.The output power is up to 20V, 3 amps, guaranteed by high speed safe charging.

USB 2.0 also supports data transfer speeds of up to 480Mbps. The high quality aluminum housing makes the cable more durable. But please pay attention before buying: This is the USB-C to USB-C cable, which means it has the same USB C plug on both ends, so you may need a USB C wall charger to charge your device.To ensure the device's charging speed, use the original USB C-port wall charger or other high-quality charger that supports QC 2.0 / 3.0 and USB PD for fast charging.

The USB_PD protocol is a power transmission protocol based on the Type_C interface. First, the pins of the Type_C interface are introduced. There are a total of 24 pins divided into two rows in a symmetrical form, that is, the upper and lower rows each have 12 pins, of which 4 One GND and four V+ can be used for power transmission. This is also the basis for supporting 100 W fast charging. There are 1 CC pins connected to the CC line on the upper and lower sides of the interface. The CC line is the USB_PD protocol data transmission channel. The communication is carried out through a single CC line, which is half-duplex. The other pins of the interface can be used for the transmission of signals such as data or audio. The Type_C interface pins are distributed symmetrically, so it also has the advantage of supporting blind mating. It does not need to distinguish between the front and the back to provide convenience for use.

In the protocol, the party supplying power is called the Source side, and the receiving party is called the Sink side. During the USB_PD protocol power negotiation process, the two parties need to communicate through the CC line and complete the energy supply negotiation to select the appropriate gear; take this design as an example to introduce the negotiation In the process, when the mobile power supply is used as the Source side, once it is detected that the CC line is pulled down, that is, there is a device inserted in the Type_C interface, it will broadcast periodically through the CC line. The broadcast content is the power supply capacity of the mobile power supply and is designed with 5 V/3 A. , 9 V/3 A, 12 V/3 A, 15 V/3 A, 20 V/3. 25 A five gears; the sink side selects a gear after receiving the energy supply information sent by the source side, and then sends the request information for the gear to the source side; when the source side receives the request information, it confirms that it meets the energy supply range After that, send the information agreeing to the application to the sink terminal, and prepare to adjust to the power level required by the sink terminal; there is a CRC check in the entire data communication process to ensure the accuracy of data transmission.