USB interface device introduction

USB interface support plug and play, hot swapped, strong expansibility. It supplies the low cost standard data transmission method. No matter the simple device such as keyboard, mouse, game controller etc or the advanced device such as printing machine, scan machine, storage device, modem, camera etc, can use USB interface. So all the device with PS2, serial, parallel interface can use USB

For low speed device, USB 1.0/1.1 standard transmission speed can reach 1.5 Mbps. For full speed device, transmission speed can reach 12 Mbps max.  Microsoft, HP, Compaq, Intel, Agere, NEC and Philips are the 7 main organizations who apply themself to make the USB2.0 standard. For high speed device, USB 2.0 standard transmission speed can reach 480 Mbps. It mainly suitable for the high capability device such as high screen camera, high resolution scan machine and big volume portable storage etc. Also, USB 2.0 compatible with the old USB 1.0/1.1 software and device. So, the user can avoid the compatibility problem.

RJ45 connector: