| Take advantage of additional RAM. Develop large programs and store more data in your HP 48GX.
Choose the memory configuration you need. Add to the main memory of the HP 48GX or use it as an electronic disk.
Save your information, even when you unplug the RAM card from the HP 48GX. Each card is powered by its own long-lasting battery.
||1-MB Battery-backed RAM Card for the HP 48GX, Independent Memory Only.
||1-MB battery-backed RAM Card, CR2016 battery, installation card, and hard plastic case.