D2298A D3578A 32MB 72pin 70ns FP w/ Parity SIMM memory Upgrade for HP LaserJet & DesignJet One 32MB 72pin 70ns FP SIMM Part#: D2298A, C3578A 100% Compatible with Lifetime Warranty Manufactured by Keystron, LLC Keystron is a registered trademark of Keystron, LLC