Hello M_Riboli,

What is the SKU# or the Dell part# that you are seeing on the spare parts list?  Here is a link to the support matrix and if you look on pages 23-30 it list out all the supported drives as well as the dell part#. https://downloads.dell.com/manuals/common/md32xx_md36xx_supportmatrix_en-us.pdf

Please let us know if you have any other questions.