How can I check if my Microsd card is genuine?

Memory Cards SD | microSD | CFast | CFexpress | CompactFlash
1

I bought a Sandisk Extreme Pro 128gb uhs-1 200mb/s red/black for roughly 19 dollars in a reputable store here in Nepal. Serial number is 4453XC7113DK

I would like to make sure they sell genuine products there. I have tried chatting with the bot chat here but no luck on registering my serial number.

2

@Bikashkc That is a date code on the microSD Card, not a serial number.
Try email support and make sure to send clear high rez pictures of the front and read of the card and packaging.

Have you checked our knowledge base articles?
(Get Support for Your SSDs and Flash Products | Sandisk)

Try this one

Have you opened a Support Case?
If not, contact SanDisk Technical Support for assistance.
(Contact Support | Sandisk)

3

To make sure that your card is legitimate, take a look at the packaging first; it should either have a tamper-resistant seal or be very clearly printed. Next, inspect the card for a serial or date code thoroughly, you can check the serial number also, on the SanDisk warranty page. If you still have any doubts, call SanDisk support and show them pictures of the card, packing, and receipt. For your next purchase, just be sure to buy from a well-known store, avoid super cheap prices, and check it carefully before you buy it!

4

It’s fake

Shows no results found

5

I checked SanDisk’s official guidelines, and SanDisk microSD cards don’t actually have unique serial numbers, which explains why the automated product registration bot couldn’t accept it. I believe a reliable way to verify authenticity is to test the memory card’s capacity and speed.

On a Windows computer, you can download and run H2testw.

Select “Write + Verify” to fill the full 128GB capacity. If an error occurs or it displays “Capacity unstable,” your memory card is very likely a counterfeit.

As far as I know, SanDisk Extreme Pro has read speeds up to 200MB/s and write speeds around 90MB/s–140MB/s. You can use benchmarking tools like CrystalDiskMark (Windows), iBoysoft DiskGeeker for Windows, or Blackmagic Disk Speed ​​Test (Mac). Counterfeit memory cards typically have slow write speeds, with a maximum speed between 10MB/s and 18MB/s. If your write speed cannot consistently exceed 60-90MB/s, it is very likely a counterfeit product. Read also: How to Tell a Fake SD Card and How to Fix & Recover