Do you know what is TLC, MLS, SLC, three representatives of the life of this chip, the speed, TLC is the worst wafer made out of SD card U disk TF card speed is generally in CLSS4 (CLASS4 refers 4MB or less MLC write speed of life is generally shorter than .MLC wafer longer half life than MLC, made out of SD card U disk TF card speed is about 6MB, so imagine the final SLC long life, speed reach CLASS10, half of the read and write speed requirements must use SLC or reach equipment. NAND Flash controller chip to improve endurance, increase SSD life with the continuous development of the original manufacturing process SD card factories in Shenzhen There are those few, NAND Flash production costs fell SD card factories, reduced life flash requires ECC error correction ability to control the chip, the higher the initial .NAND Flash SLC Endurance up to 10 million times, just using 1- 4bit ECC, 20nm MLC flash technology to reduce life to 3000--10000 times required ECC up to 16-40bit, TLC Endurance to only 500 - 1000 times, need 72bit even higher ECC.NAND Flash in SLC period, control chips only need to use error correction capability is not strong Hamming code algorithm, MLC requires a higher error correction capability BCH code, TLC or 3D starting from the BCH error correction technology to low-density parity check code LDPC transition to strengthen use life. SD Card Factory released the latest news, you know how to make the SD card is right, you know the transmission rate SD card for you, you know how a normal SD card to use it, you know it is true or SD card capacity, hey , do not know, SD card-making video look at genuine link http://my-1688.com/xwfb/2015/03/23/SDKaGongChangFaBuSDKaZhiZaoShiPin/SD card, there are a lot of low-cost, high-capacity in the market sell, if you buy SD card appear can write files in it, but could not be read to discover, this may not be upgraded, if there can not monitor the dedicated SD memory card factory, read or not read, the computer display as well as 2- 10 G then congratulations, you are definitely upgrade card brand SD card factory caught you, but do not be afraid, after buying the card remember to find the Shenzhen famous electronics, we only spare capacity, fast, good quality memory card, to famous a chance, also is to give yourself a blue sky. thank all famous people. Thank you for letting us do better. monitor dedicated SD card factory _ famous electronic (online consultation) _SD card facility provided by the famous Shenzhen Electronics Co., Ltd. ShenZhen famous Electronics Co. (www.my-1688.com) Guangdong Shenzhen, digital accessories leader over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the famous e-leadership with the staff warmly welcome all inquiries negotiations to create a better future for the famous electronics.