Hi at all

I’ve bought :

_cablecc m-Key Nvme SSD M.2 NGFF Scheda convertitore per 2014 MacBook Mini A1347 MEGEN2 MEGEM2 MEGEQ2

_Transcend TS256GMTE110S Unità a Stato Solido Interne PCIe Gen 3x4 MTE110S, M.2 NVMe, 256 GB

I installed all on my mac mini late 2014, the SSD works but is not possible install on that the MAC OS because I can’t create GUID partitioning also over the formatting Journaled .

It’s normal or I’ve to do some preliminary operation?

Thanks

Attilio