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
512MB PC133 133MHZ SDRAM 168PIN HIGH DENSITY MEMORY RAM Non-ECC Memory | eBay
ACP-EP Memory 512MB PC133 168-PIN SDRAM DIMM (MAC and PC) at Amazon.com