Check the listing for details. Q7721-67951 128MB, 200pin, DIMM memory module for HP Laser printers. Condition: New. Listed at 39.00 USD. Q7721-67951128MB, 200pin, DIMM memory module 100% ORIGINAL , NEW & UNUSED HP PART The list of HP Products that Part Number Q7721-67951 is used in.21 records foundColor LaserJet 5550hdn PrinterHP COLOR LASER JET CP4005DN PRINTERHP COLOR LASER JET CP4005N PRINTERHP COLOR LASERJET 4700DN PRINTERHP COLOR LASERJET 4700N PRINTERHP COLOR LASERJET 5550 DN PRINTERHP COLOR LASERJET 5550 DTN PRINTERHP COLOR LASERJET 5550 HDN PRINTERHP COLOR LASERJET 5550 N PRINTERHP Color LaserJet 4700 PrinterHP Color LaserJet 4700dtn PrinterHP Color LaserJet 4700ph+ PrinterHP Color LaserJet 4730 MFPHP Color LaserJet 4730x MFPHP Color LaserJet 4730xm MFPHP Color LaserJet 4730xs MFPHP Color LaserJet 5550 PrinterHP Color LaserJet CM4730 MFPHP Color LaserJet CM4730f MFPHP Color LaserJet CM4730fm MFPHP Color LaserJet CM4730fsk MFP