The SX32 is an expansion for the CD32 that came out in the 90s, it lets you add 8MB FastRAM, an IDE drive, and has ports on the back for VGA, Parallel, Serial, Disk Drive and RGB. They're pretty rare and very expensive when they're for sale on eBay, which is why a bunch of us have been hoping for years to develop a new, cheaper expansion for the CD32.