Sun Remarketing has NEW Apple //c Memory Expansion Cards in stock for $49.00. You can order them here, plus they’re also selling them on eBay (search eBay for user “sunrem”). These cards come with 256K standard and can be expanded to 1 Megabyte.

Note to //c+ users: these cards may or may not work in your machine. Initially, the Memory Expansion //c was known to be incompatible with the //c+ but later in the machine’s production run, Apple Dealers often bundled the card with the //c+ to help it compete with the “clone-on-steroids” Laser 128EX/2. So caveat emptor, your mileage may vary..