Industry News

Basic Knowledge of USB Drive

Time:2016/11/30Post:Shenzhen DingBohui Technology Co., Ltd.

    There are still some clients still could not get very familiar with USB combinnation,today DBH promo engineers team present some basic knowledge about USB Flash Drive.

A USB Stick usually made of housing case,Nand Flash,PCBA and some components and parts.The most important part of USB is Nand Flash,which occupy most cost of a finished USB drive,which responsilble for store data.The flash market price greatly affect the USB price finally.

Flash at moment DBHpromo usually adopt Samsung,Sandisk,Micron,Toshiba,Hynix name brand,in actual production,we will adopt one of the chip types based on inventory.

Flash is divided into two types,one is SLC(Single Level Cell) and MLC(Multi-Level Cell),let's see what is difference between this:

Theoretical lifetime:SLC  100k times plug and play,MLC is 10K times  

Speed:Usually the same capacity,SLC is faster than MLC

Power Consumption:Under same condition,SLC is lower than MLC

From oversee,the MLC not seems good than SLC,but unit cell store MLC have abasolute advantate than SLC,recent years so many chip facotory greatly improved the constructure

of MLC,the whole performance seems better and better.

     Another important inforation is about the controller of the USB,main have Chipsbank,Alcor,SMI,PHISON,Usbest etc,
SMI and PHISON belongs to USB3.0 usually do,2.0 usually adopt Alcor and chipsbank.

Usually if clients need to specific controller and chips,the cost will increase,because this add the time to find the chips matching the controller.

More industry news or query,feel free to contact dbhpromo.com.

 

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