256MB 200 pin DDR SDRAM SODIMM Printer Memory for HP Color LaserJet 4650 Series 4650, 4650n, 4650dn, 4650dtn, 4650hdn.(PARTS-QUICK BRAND) Equivalent to Q7722A Q2631A . Form Factor: 200 pin Printer SODIMM Warranty: Lifetime Capacity: 256MB