The USB A female soldered copper/iron case is equipped with a sheath, and the USB interface truly realizes hot swapping. When installing hardware, there is no longer a need for the tedious process of shutting down, connecting, booting, installing driver programs, and restarting like serial or parallel ports, truly achieving PnP (plug and play) in the boot state. Moreover, USB interfaces have their own separate reserved interrupt numbers (automatically assigned by the USB driver and automatically retrieved after the USB device is unplugged), which do not compete with other devices for limited resources and can avoid many configuration troubles. The specific appearance specifications, dimensions, and related electrical performance parameters of this product with large bandwidth and fast speed can be directly viewed in our PDF specification book. The hardware shell opening of the product in the picture is curled and flanged, and the plastic material is environmentally friendly and high-temperature resistant PBT plastic. The colloid color is black glue. This product is specifically used for tablets, laptops, desktops, inkjet printers, and the USB1.1 protocol allows for two data transfer speed specifications: 1.5Mbps and 12Mbps, This is approximately 100 times the standard serial port (115Kbps) and 10 times the standard parallel port, and the new USB2.0 protocol can already provide high-speed transmission at a rate of 480Mbps.