A-Tech 8GB Module for HP 255 G6 Laptop & Notebook Compatible DDR4 2400Mhz Memory Ram (ATMS383144A25827X1) at Amazon.com
8GB (1x8GB) Memory for HP 255 G6 Notebook DDR4-2133 SODIMM RAM(PARTS-QUICK Brand) at Amazon.com
HP Notebook 255 G6 Laptop 15.6" HD AMD A6 9220 2.50GHZ 8GB RAM NO HDD/OS/BATTERY | eBay
Amazon.com: 2018 HP 255 G6 15.6" HD Wide Screen Business Laptop Computer, AMD A6-9220 up to 2.9GHz, 8GB DDR4, 256GB SSD, DVD-Writer, 802.11ac, USB 3.1, Bluetooth 4.2, HDMI, Windows 10 Professional : Electronics
parts-quick 4GB Memory for HP 255 G6 Notebook DDR4-2133 SODIMM Compatible RAM at Amazon.com