The answer depends on whether your system has a 3 or a 4 cell battery.  If it has the 3 cell, you can install a 2.5" SATA drive alongside the original M.2 drive.  If you have the 4 cell, you cannot. From the manual: This section lists the storage options on your Dell G3 15 3500. 2.5-inch hard drive SATA AHCI, up to 6 Gbps Up to 2 TB M.2 2230/2280 solid-state drive PCIe Gen3 x4 NVMe Up to 1 TB M.2 2280 Intel Optane storage PCIe Gen3 x4 NVMe Up to 512 GB\
Hi, I have dell g3 15 3500 laptop with i5 10300h, gtx1650ti, 8gb ram (4+4), 512gb ssd. I want to upgrade my storage but I don't know that my laptop supports another slot for ssd or hdd. I think full model name is Dell G3 15 3500-H5JDG
G3 15 3500 increasing storage