Museum of Obsolete Media on Twitter: "A SanDisk 512 MB microSD card on top of part of the 8 KB magnetic-core memory board showing some of the magnetic rings (toroids) and the
512MB micro SD Memory Card : ID 5252 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Genuine SanDisk M2 - 512 mb Memory Card For Sony Ericsson, older Xperia, PSP GO | eBay
SanDisk Extreme PLUS 512GB microSDXC UHS-I Memory Card SDSQXBZ-512G-ANCMA - Best Buy
Amazon.com: SanDisk Ultra II SD Plus with USB 512MB (SDSDPH-512-901, Retail Package) : Electronics