Teach you to know the internal interface of the notebook

I believe that everyone knows enough about the external interface of the notebook, but there are few opportunities for the internal interface to contact, do not know what these internal interfaces are used, today Xiaobian will bring you Go and see what these mysterious internal interfaces do. 1. SATA interface function: provide communication interface for notebook hard disk and optical drive. This is the most common interface of notebook. Basically, notebook hard disk and optical drive after 2006 have adopted such interface. Although the hard disk and optical drive interface are similar in function, the form has essential differences. The most obvious is that the SATA port of the hard disk is about 1/3 wider than the optical drive. However, these two interfaces can be converted to each other through the riser card. For example, the SATA interface of the optical drive can be converted into the SATA interface of the hard disk by the portable optical drive conversion bracket, thereby realizing the requirement of the notebook optical drive to expand the hard disk. This conversion card has no control chip, just a simple physical circuit connection. Tip: Pay attention to the version of the SATA interface. The SATA interface still has version problems, such as SATA1.0 (150MB/s), SATA2.0 (300MB/s) and SATA 3.0 (600MB/s), which has little effect on the optical drive, but Low version may affect the hard disk, especially the solid state hard disk, so before upgrading the solid state disk, you must ensure that the SATA port you want to use is at least SATA2 interface. The hard disk and optical drive on the notebook motherboard are both female, and the device side is the male port from the width to be able to identify the optical drive and the hard disk SATA interface. 2.mini PCI-E interface role: connect wireless network card, 3G network card, etc. Notebooks will be equipped with this interface, because wireless network cards have become standard for notebooks. It is based on the PCI-E bus and can be used to extend peripheral devices for notebooks, such as Bluetooth modules, 3G modules, and wireless network card modules. And with some special control chips and conversion cards, we can also use the mini PCI-E interface to expand a variety of interfaces, such as USB interface, CF card interface or even SATA interface. However, the mini PCI-E interface has a low bandwidth, which is suitable for some peripheral devices that do not require very high data throughput. For more interface content on this interface, we will introduce it separately for you. Some commercial notebooks have multiple mini PCI-E ports inside, and in addition to the built-in wireless network card, at least one more reserved for 3G modules (and embedded antennas). Although the two interfaces are common, but the difference between "half-height card" and "full-height card", everyone should pay attention to the module.