Be Calm Posted August 31, 2018 Posted August 31, 2018 Small question i bought 32G kingstone memory card class10 But when use SD Insight app it can't detect and recognize the company ■is that mean my card is fake??!! Note when use H2testw program it can read and write 30457MByte without error But !! THE WRITE SPEED WAS ONLY 6.79MByts/s And read speed was only 18.2MByte/s ■it class 10 how write speed only 6.7mb is that error or what???!!!
chrisf Posted September 2, 2018 Posted September 2, 2018 I wouldn't be surprised with those numbers. Kingston doesn't aim for the top of the market in terms of performance. Their goal is low price. The cards will be specifically designed for sequential read and write performance. As soon as there's anything random in the write pattern, the speed will plummet. Even large block sizes of several MB will have terribly slow write speeds.
tkaiser Posted September 3, 2018 Posted September 3, 2018 13 hours ago, Be Calm said: Some one reply me please! You already got a satisfying answer to your very same question: https://forum.armbian.com/topic/7746-is-your-sd-card-a-fake-check-with-sd-insight-android-app/?do=findComment&comment=60946 Kingston cards aren't good for the SBC use case anyway and your card is not even 'genuine' Kingston but a fake.
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