Re: The DELL Manual says that it supports only 1 TB HDD + 128 GB M.2 SATA SSD Combination. Could someone please comment on this that will I be having issues if I put a 256 GB M.2 SATA SSD along with my 1 TB HDD. yes 256GB M.2 ssd is fine.  Dell only sells lor validates their own ssd up to 128 GB but a 256 GB will certainly work.
I have a DELL Vostro 3470 Desktop PC which was shipped with the following specifications: i3-8100 Processor; 4GB RAM; 1 TB 7200 rpm HDD   The P.C has a M.2 SATA SSD Slot. I want to have SSD as my boot drive and keep the HDD for storage. The DELL Manual says that it supports only 1 TB HDD + 128 GB M.2 SATA SSD Combination. Could someone please comment on this that will I be having issues if I put a 256 GB M.2 SATA SSD along with my 1 TB HDD. 128 GB SSD doesn't seem practical to me and I do not want to remove my HDD as I will have quite some data to store.   Also, could someone please tell me the specifications of the RAM it supports. I couldn't find the details regarding latency in the manual. Does it support a CL-19 RAM?  
DELL Vostro 3470 Upgrading SSD and RAM