There are many expansion cards on the market at present
Expansion means taking1Gor2G（or128M,256M）Capacity expansion4G 8G 16G 32GSuch as
In fact, it's still1Gor2GCapacity，The buyer cannot determine whether to expand through the computer。
得"Use软件Conduct a test！
A simple way to test whether the quantity is sufficient is：Such as14.9GCopy of capacity card14GThe information on both sides
（"File，Song，"Film"），然后删除电脑右下角的硬件拔出读card器，
Such as果可以读取说明已经达到实际容量，
The expanded capacity can be used，All the data copied later are damaged，Unreadable！
Shangge Smart solemnly promises：All the memory cards sold are genuine and of full capacity，We refuse to expand the card！！
建议"Use磁盘软件H2testw"Detection，Expand the card（升级card）Show one's true colors！
Test whether the memory card has sufficient capacity？
Method One：
"UseH2testwConduct a test。
Method Two：
A simpler method，例Such as测试8G，It can be stored.7G多的音乐or视频，If all can be read normally，It indicates that it is a sufficient quantity card，Such as果是扩容card，Only the files stored in the previous section can be read（It really depends on how large the expansion is），后段的"File是损坏Unreadable。
Warm reminder：Due to the significant fluctuations in chip prices，The quotation is subject to the quotation of the day。
TFcard(Xiao Ka)，Different fromSDcard("Big card")，TFcardabout为SD"Stuck.1/4，It is currently in circulation.、Small-sized memory cards，Applicable to mobile phones、Dashcam、Car navigation、插card音响、Learning machine、Camera、监控摄像Such as设备Such as。 TFcard有传统SDThe advantages of the card，"Matching"SDThe adapter card sleeve can be converted intoSDcard，并兼容于"UseSDThe device of the card，"In line withSDSpecification standard。
产品Such as级标准：
C4=Class4=Write per second4MAbove；
C6=Class6=Write per second6MAbove；
C10=Class10=Write per second10MAbove；
U1=Write per second10MAbove；
U3=Write per second22-30MAbove；
The label of this product indicates the memory capacity it is equipped with，而并非实际可"Use的Storage capacity。
*Storage capacity1MBAs1,048,576Byte computation。Storage capacity的一部分被As管理区域"Use，因此可供"Use的Storage capacitySuch as上所述。
TFCard size：15mm(L)×11mm(W)×1mm(T)
Weight：about0.41g
Interface type：TF存储card标准规格(8pin)
Working voltage：2.7～3.3V
Working temperature：-25°～85°
Storage temperature：-20～65°
Preserve humidity：30～80%RH(No condensation is allowed.)
