Hewlett Packard 82215A 128 KB RAM Card for The HP 48GX

Hewlett-Packard designed the HP 48GX graphing calculator for nearly limitless problem solving, with expandable memory and functions. With the addition of the HP 128 KB RAM card you can customize your HP 48GX through plug-in cards--from the 128 KB (available here) up to 1,280 KB. The 128 KB RAM card allows you to choose as much memory as you want, adding as your needs increase. With the additional RAM added to the main memory, you can develop larger programs, store more data in your HP 48GX calculator, or use the card as an electronic disk. The 128 KB RAM card is powered by its own long-life CR2016 battery, which permits you to save your information even when the RAM card is unplugged from the HP 48GX.