Product: IM-10003698 Manufacturer: HP-COMPAQ Brand: HP-COMPAQ Model: Color LaserJet 4550DN, 4550HDN Part Number: C7848A Price: $29 Description: 64MB Module For: PRINTERS: Color LaserJet 4550DN, 4550HDN Std. Memory:128MB R Max. Memory:192MB # Slots:2