Dell Precision 5550 is the full-on refresh of the Precision 5540 in the same vein as the XPS 15 9500, but performance hasn't really changed - NotebookCheck.net News
Amazon.com: A-Tech 32GB Memory RAM for Dell Precision 5540 - DDR4 3200MHz PC4-25600 Non ECC SO-DIMM 2Rx8 1.2V - Single Laptop & Notebook Upgrade Module (Replacement for AB120716) : Electronics
Dell Precision 5540 (2019) Mobile Workstation Unboxing and First Impression - YouTube
Precision 15 Inch 5540 Mobile Workstation Laptop for CAD | Dell USA
Amazon.com: A-Tech 32GB Memory RAM for Dell Precision 5540 - DDR4 3200MHz PC4-25600 Non ECC SO-DIMM 2Rx8 1.2V - Single Laptop & Notebook Upgrade Module (Replacement for AB120716) : Electronics