Thank you for your interest in the Intel® SSD DC S4500 Series.
I understand that you want to find out if the Intel® SSD DC S4500 Series is compatible with the IBM* System x3550 M2 7946 Server (please correct me if I'm wrong).
The official list of compatible products can be found here: https://ark.intel.com/products/120532/Intel-SSD-DC-S4500-Series-3_8TB-2_5in-SATA-6Gbs-3D1-TLC (on the left menu, click on Compatible Products to display a list of the officially tested server environments.).
Since the server you are asking for is not on the list, the compatibility confirmation should be provided by the server manufacturer, in this case Lenovo*. My suggestion is to contact them to make sure that there is no compatibility issue ( https://datacentersupport.lenovo.com/us/en).
If you have any other question, don't hesitate to contact us.
I was wondering if you have any updates. Did you contacted the server manufacturer to find out if your system is compatible with the SSD?
In case you consider that you need further assistance, don't hesitate to contact us.