AIM Compatible Replacement - HP 1MB Memory Module (C2063A) - Generic Product Sort: Printer Accessories Product Type: Memory Compatibility: Works In HP LaserJet IIISi / HP LaserJet 4 / HP LaserJet 4M / HP LaserJet 4Si / HP LaserJet 4SiMX / HP DeskJet 1200C / HP DeskJet 1600C / HP PaintJet XL 300 Series Laser Machines Weight: 8 Parts: 30 DAYS Labor: 30 DAYS