In order to use the USB logo (LOGO as shown in the figure below), USB adopters must go through a series of certification processes and first apply to the USB Association of the United States to become a USB member before officially adopting the USB specification and expanding functions on this basis. The products launched can only be officially sold after passing the USB compliance test cycle.

universal serial bus (USB) ::


In the future TYPE C scheme, the future system or device manufacturer will provide a “user-friendly” method – when the device has not passed the certification, the system will pop up a prompt, and it is up to the user to decide whether to continue to use the device .

USB Association also designed new text logos “USB Type-C” and “USB-C” for the latest USB Type-C, but they can only be used on products that comply with the USB Type-C cable and connector specification. The announcement symbol must include the preliminary “USB Type-C” or “USB-C” in any material, and USB Type-C and USB-C cannot be translated into languages other than English. USB-IF does not recommend the use of other wordmarks.

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After the requirements for Type-C cables, the current USB Developer Forum website has announced a new licensing mechanism and LOGO for USB-C chargers. Certified USB-C chargers will be marked with a logo with power wattage, and at the same time USB-IF predicts that 15W, 27W, 45W and 60W will be the most commonly used power levels on the market.

The new licensing mechanism is based on the USB Type-C and USB PD specifications, which covers traditional power modules and wall plugs, and is compatible with notebooks, tablets, smartphones, monitors and other devices that use Type-C ports.


Rahman Ismail, technical officer of the USB-IF Forum, said that certified charging products can bring consumers a better compatibility experience, and these specifications will reduce electronic waste generated worldwide and increase the reuse rate of power supplies.


In recent years, a variety of transmission interface standards have gradually emerged, such as DP, MHL, HDMI, Thunderbolt, etc. The integration of these standards has become a trend, but more integration is similar to the integration of USB and DP, USB and SATA, not comprehensive. This time, Type C supports a variety of transmission interfaces, which also brings a more standard definition.

In addition, the power delivery (PD) function of USB has also been criticized for its low power and single function. The industry hopes to realize the interoperability of power transmission and intelligent charging. “Smart charging can adjust the charging method according to the application scenario. In addition, the industry also expects that USB can carry high-power power transmission, such as powering flat-panel TVs. Now users are paying more and more attention to data security. The versatility of Type C has brought Safety hazards, safety certification standards for Type C interfaces are becoming more and more important.

According to market research agencies, by 2019, it is expected that more than 2 billion electronic devices worldwide will adopt the Type-C interface, and the market prospect is quite broad, which will further promote the sales of certified products.

To produce USB products, the manufacturer needs to become a member of USB-IF. The following application process is for your reference!

Step 1: Send an email to:, and apply to become a member of the USB Association.

Step 2: According to the account number on the reply email of the USB Association, the remittance is completed and an email is sent to, with a water bill attached. The membership fee of the association is 4000USD/year.

Step 3: Prepare the following materials and samples

Step 4: Pass the test to obtain a certificate. Before that, you need to pay the test fee. The fee varies according to the type of product to be tested, ranging from 3000USD to 12000USD! (Test fee for wire).