Dell laptop NVME SSD upgrade & reinstall of Windows 10, it's

Upgrade Options for Dell Latitude 7320 Detachable dell latitude e5440 m 2 slot Your system can only have a HDDSSHDSSD The E5540 does not have an slot for a PCIe SSD That according to the Dell specs at the E5540 dell latitude 3480 m2 slot 2 Latitude D8x0 series; 3 Latitude D5x0 series; 4 The D620 used a Socket-M for its motherboard and its CPU is possible to be upgraded

dell latitude e5440 m2 slot Dell Latitude E5440 i5-4300U 8GB 240GB SSD 1600x900 Class A Windows 10 Home Windows 10 Home Post-lease laptops, technically working 100%