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We carry tested and certified other HP48GX, TDS COGO, survey, Survey pro, Ram cards, and associated manuals. We distribute regularly to Surveyors all over the US, and specialize in bulk purchases and sales. We keep our website simple on purpose, and provide email and phone support.

This site is named after the ENTER key which sets RPN calculators apart from all others.

We are not associated with http://www.hp.com/