Posted by a reviewer on Amazon

It says its a 4 gb class 4 micro sd card

Posted by a reviewer on Amazon

It is the only size that works in older phones

Posted by a reviewer on Amazon

Needed this size only as the device would not take larger works great thanks

Posted by a reviewer on Amazon

Micro sd cards most does what it suppose to do

Posted by a reviewer on Amazon

This is working just fine but i wanted to leave this for a generic 32gb card i bought

Posted by a reviewer on Amazon

Anyway if youre shopping you may be looking at them as well because they are cheaper but heres what i found outalthough a different seller of a cheaper unit refunded my money and told me not to bother returning the micro sd card the fact that these cards from this vendor appear to be mostly defective makes me wonder if they make their money off folks that dont bother to apply for a refund or write a review

Posted by a reviewer on Amazon

There are defects in manufacturing these especially higher capacity and rather than throwing them out somehow they make it to vendors who sell them hoping a few actually work and for the ones that dont well the buyers will just throw them away

Posted by a reviewer on Amazon

Never have problems with sandisk