About capacity:
·64GB≈58GB-60GB
·128GB≈119GB-120GB
·256GB≈228GB-235GB
·512GB≈455GB-470GB
·This is calculation difference between manufacturer and our PC（1MB=1000KB）, please Google 'Memory card capacity' to get more information.

About speed:

The read and write speed marked on the package: It is demonstrated by internal testing under certain controlled conditions using the UHS-1 interface. The actual speed may vary due to usage and other conditions. For products that are not compatible with the UHS-I interface, the speed may vary depending on the interface conditions。

Steps to verify the capacity and speed of the memory card:

(1). Please use quality USB 3.0 card reader to verify all memory card by H2testw on PC.
Real memory card should pass H2testw with no error.
(2). Please don\'t use cheap card reader to test Micro SD card, speed of Micro SD card will be reduced by
low quality card reader.
(3). Micro SD memory card speed is greatly affected by card reader and the capacity you choose ,
USB port etc. Low quality device will 100% slow down card speed,1MB=1000KB.
*Transmission speed is based on Samsung's internal testing environment and conditions. The actual speed may vary depending on the host device and environment used.
**For devices that do not support UHS-I, the transmission speed will vary due to interface limitations.

The products we sell are genuine Samsung products:

1.The Samsung memory card verification service method was changed from “anti-counterfeit laser sticker” to “software verification”, and the product packaging has a V-shaped logo.
2.The new authenticity identification needs to be downloaded to Samsung's official website (Samsung official website - after-sales service - download center) to download software.
*Samsung products are produced in the Philippines, China and South Korea; all products are original authentic products.

Note for the delivery (please read before ordering):

1.The mode of transportation (economy parcel) with a value of less than US$5 provides information on collecting, warehousing, outgoing and shipping in China. Some countries can provide tracking information for the "country of arrival".
2.The shipping time to many country normal is 16 - 35 days.
3. if your Confirmation Time is coming,and still do not receive the goods,please contact with us to extend the delivery date.
4. However, Please do trust us. You will get the package in time.
5. If Items is not received in 60 days,we will refund（Brazil 90 days）.
6. Please do not open dispute within 60days,Thanks for your kindly.
7. When you make the order,it means that you agree with the above instructions.Thanks.

Feedback:

1. We are pure-heart seller and our goal is 5 STARS.
2. Please kindly leave us positive feedback, we will try our best to do better.
3. We focus at customer\\\'s satification and always put it in highest priority. If you have any problem with the item, we can always try our best to Provide a good solution. Please do contact us in advance before leaving any negative/neutral feedback. Good communcation is important for us. We are for sure can make it a successful transaction for you.