Was it purchased from Dell directly? If not it’s probably not authentic. Don’t see a PPID on it either.

https://www.dell.com/support/article/us/en/04/sln306267/how-to-find-the-ppid-piece-part-identification-on-dell-poweredge-parts-?lang=en

i think you should verify wether it's been bought directly from dell or not, other than that there's no adequate way to verify that

regards