This HP quad memory module is a fantastic addition to your HP 41C/CV calculator. Designed and manufactured in Singapore, this vintage HP 82170A model is perfect for collectors and enthusiasts alike. With four memory slots, you can store and access multiple programs and data sets with ease.

The module is compatible with HP calculators that have a card reader, and the vintage design adds a touch of nostalgia to your collection. This item is in great working condition, and with its renowned HP brand, you can trust that its quality is top-notch. Add this HP quad memory module to your vintage electronics collection today.