HP Q2627A Q7719A Q2619A 256MB 100 pin DDR SDRAM DIMM for HP LaserJet 4240n 4250 4250dtn 4250dtnsl 4250n 4250tn 4345 4345x 4345xm 4345xs Printer Memory (PARTS-QUICK BRAND) Form Factor: 100 pin Printer DIMM Warranty: Lifetime Capacity: 256MB