HP EliteBook 8540p, Intel Core i5-1st Gen. CPU, 4GB RAM, 320GB HDD, 15.6 inch Display, NVIDIA QUADRO NVS 5100M 1GB DDR3, Win10Pro, Refurbished Laptop
4GB Team High Performance Memory RAM Upgrade Single Stick for HP - Compaq EliteBook 8540p (Quad Core Processors) Laptop. The Memory Kit Comes with Life Time Warranty. at Amazon.com
New SO-DIMM DDR3 Memory RAM 1600MHz (PC3-12800) 1.5V for HP EliteBook 8460p 8470p 8470w 8540p 8560p 8570p 8570w 8770w - AliExpress