Hi,
Have you checked our knowledge base articles?
(Get Support for Your SSDs and Flash Products | Sandisk)
Try this one.
- Sandisk Safe Buying Guide | Sandisk
- Learn About Non-Authentic, Fake, Counterfeit Sandisk Memory Cards | Sandisk
Have you opened a Support Case?
If not, contact Sandisk Technical Support for assistance.
(Contact Support | Sandisk)
The packaging looks consistent with a genuine SanDisk Extreme 512GB card, and I don’t see an obvious counterfeit sign. But a photo can’t confirm authenticity. The best check is a full capacity test with Validrive or H2testw.
