Storage options below -- if the system was shipped with only an M.2 drive, the hardware for mounting a 2.5" drive will almost certainly be absent and you'll need to order it from Dell. 2.5-inch 5400 rpm, hard drive SATA upto 2 TB M.2 2230 solid-state drive PCIe NVMe 3x4 upto 1 TB M.2 2280 solid-state drive PCIe NVMe 3x4 upto 2 TB
Hello! Could I, just like on the Inspiron 3511 laptop, add an additional 2.5 inch hdd/ssd SATA drive? Is it included cable connection and rack? 
Upgrade Vostro 3510 Storage