AIM Compatible Replacement - HP 4MB Synchronous DRAM DIMM Memory (C4140A) - Generic Product Sort: Printer Accessories Product Type: Memory Compatibility: Works In HP Color LaserJet 4500 / HP Color LaserJet 8500 / HP Color LaserJet 8550 MFP / HP Color LaserJet 8550 / HP LaserJet 4000N / HP LaserJet 4000T / HP LaserJet 4000 / HP LaserJet 4050N / HP LaserJet 4050T / HP LaserJet 4050 / HP LaserJet 4100 / HP LaserJet 8000 / HP LaserJet 8100 / HP LaserJet 8150 / HP Mopier 240 / HP Mopier 320 Series and Other Laser Printers Weight: 8 Parts: 30 DAYS Labor: 30 DAYS