512MB SDRAM PC133 DIMM for Apple eMAC 700MHZ / 800MHZ – Aplus Technology
512MB PC100 100MHz / PC133 133MHz 144-PIN SDRAM SODIMM RAM FOR APPLE LAPTOP/PCs | eBay
Amazon.com: Orange Pi Zero 512MB SDRAM AllWinner H3 Quad Core Open Source Single Board Computer, Microcontroller Run Android, Ubuntu, Debian (Zero +Expansion Board +BK Case +OTG Power Supply) : Electronics
7264WHSEM8G19TWN-PK0 PNY 512MB SDRAM Server Memory