arvinss

Hi, I am going to china to purchase micro sd card which uses in mobile but there is a problem....they used to cheat customer. i need to check each & every card & quantity is 5000. Reason of checking is as follows 1- Upgraded card - 512mb upgraded to 1 gb & 1gb upgraded to 2 gb but when we see the memory status in card then it will so 1 gb & 2 gb space but the space will be 512mb or 1 gb 2- may be some card of 5000 have no wafer...silicon .... The normal testing method is to load a file of 1990mb file in it through mobile & laptop 1 card will be cost around 4 usd dollar..... so i want to check each & every card by my laptop but it will take too much time so i want to ask to all teachers that is there any device can be made such as micro sd card reader by which i can test 10 or 20 micro sd card at 1 time through laptop.. Request you to please Please help me really i will be obliged