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Confirm the hard disk interface: Before buying a solid state, first determine the interface of the notebook or motherboard. In the era of mechanical hard disks, the SATA interface is basically dominating the world, and the solid-state hard disk interface is still in a state of chaos. If it is a new motherboard and a new notebook, directly choose a solid state drive that supports the NVMe M.2 interface of the PCIe 4.0/3.0 protocol. If it is an old motherboard and an old notebook (without m.2 interface) to upgrade, choose the solid state of the SATA interface, but because the maximum speed of the SATA interface is only 700m/s, compared with the current PCIe 4.0 protocol, which is often 3000-7000m/s speed, It's simply not enough to see, choose the latter when you can choose the NVMe M.2 interface.

Author: long hair is very short
Link: https://zhuanlan.zhihu.com/p/499093337
Source: Zhihu
Copyright belongs to the author. For commercial reprints, please contact the author for authorization, and for non-commercial reprints, please indicate the source.

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U disk purchase points 1. The interface has different standards such as USB2.0, 3.0, 3.1, 3.2, etc. There is no need to worry about buying it, as long as it is USB3.0, because USB3.0 can support a maximum transfer rate of 625MB/s, and At present, the fastest U disk is still below 600MB/s (Kingston DTMAX read speed is 1GB/s, C port), so as long as it is not a Thunderbolt interface, there is no need to worry. Here is only the conclusion. For the specific reasons, see: How to buy a U disk? What is the difference between usb3.0 and usb3.1? The interface type is not the bottleneck that affects the transmission speed of the U disk, but the main control and flash memory really affect the speed. Many manufacturers of U disks have to test external supply for these two key parts, and do not produce them themselves.

Author: Venetian's Private Land
Link: https://zhuanlan.zhihu.com/p/193926222
Source: Zhihu
Copyright belongs to the author. For commercial reprints, please contact the author for authorization, and for non-commercial reprints, please indicate the source.


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