16GB kit (8GBx2) Upgrade for a Dell Precision M4500 System (DDR3 PC3-12800, Non-ECC, ) at Amazon.com
Dell Precision M4500 15.6" Standard Laptop - Intel Core i7 640M 1st Gen 2.8 GHz 8GB SODIMM DDR3 SATA 2.5" 128GB SSD DVD-RW Windows 10 Pro 64-Bit.Used with FREE 3 Year Warranty
Dell M4500 15.6" Laptop 1.73GHz i7-Q 740 4GB RAM (Grade B No Battery, Webcam) | eBay
Refurbished: Dell Precision M4500 15.6" Standard Laptop - Intel Core i7 720QM 1st Gen 1.6 GHz 8GB SODIMM DDR3 SATA 2.5" 500GB DVD-RW Windows 10 Pro 64-Bit - Newegg.com
8GB KIT (2 x 4GB) for Dell Precision Mobile Workstation Precision M4500 (Dual Core) Covet M6400 M4500. SO-DIMM DDR3 Non-ECC PC3-8500 1066MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
Dell Precision M4500 15.6" Standard Laptop - Intel Core i7 640M 1st Gen 2.8 GHz 8GB SODIMM DDR3 SATA 2.5" 128GB SSD DVD-RW Windows 10 Pro 64-Bit.Used with FREE 3 Year Warranty
How to upgrade DELL Precision M4500 up to 16GB RAM | cmexonat's blog