Arch Memory 8GB 240-Pin DDR3 1866 MHz ECC UDIMM RAM for HP Spectre XT Ultrabook 13t-2100 at Amazon.com
1G Laptop Memory, 1GB 266 MHz 200 Pin Laptop RAM Memory for DDR PC-2100 Notebook Fully Compatible for and for Motherboards at Amazon.com
2GB Black Diamond Memory Module for Compaq Pavilion dm3 Series dm1z-2100 DDR3 SO-DIMM 204pin PC3-10600 1333MHz Upgrade System Specific Memory - Newegg.com
CMS 2GB (2X1GB) DDR2 4200 533MHZ NON ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude 2100 Notebook DDR2 - A59 - Walmart.com
8GB (2 X 4GB) Memory Upgrade for EliteGroup (ECS) KBN-I/2100 Motherboard DDR3 PC3-10600 1333MHz DIMM RAM (PARTS-QUICK Brand) at Amazon.com
1GB SODIMM PC-2100 RAM Memory for IBM ThinkPad A31p at Amazon.com