Hynix HMT451S6AFR8A-PB 4GB PC3-12800 DDR3-1600MHz non-ECC Unbuffered CL11 204-Pin SoDimm 1.35V Low Voltage Single Rank Memory Module at Amazon.com
Dell Latitude 3150 Laptop Computer, 11" HD Screen, Designed for Work or School, Intel Celeron Dual-Core, 4GB DDR3 RAM, 250GB HDD, WIFI, Bluetooth, Windows 10 Home, (Used) - Walmart.com