HP 512MB DDR2 SDRAM Memory Module - 512MB - DDR2 SDRAM - 144-pin DIMMMemory Size: 512 MBMemory Technology: DDR2 SDRAMNumber of Pins: 144-pinForm Factor: DIMMCompatibility: Black and White Laser Printers:HP LaserJet P4014 Printer seriesHP LaserJet P4015 Printer seriesHP LaserJet P4510 Printer seriesCountry of Origin: ChinaLimited Warranty: Lifetime