Understanding the naming rules of USB version and its interface type can help users better understand and choose the right USB product for them.
Details +There are still many shortcomings of wireless charging, there are too many immature technologies, and it is generally believed that the radiation prob...
CB system (IEC system for conformity testing and certification of electrical products) is an international system operated by IECEE.
UL is English underwriters experiment (system Laboratories Inc.) short, belong to the product safety certification organization (similar to the Chine...