2MB, 70nS, 36-bit SIMM memory module - For HP LaserJet 4P, 4+, 4V, 5, 5N, 5M, 5P, 5SiOEM Ready To Ship!
HP C3131A 2MB, 70nS, 36-bit SIMM memory module - For LaserJet 4P, 4+, 4V, 5, 5N, 5M, 5P, 5Si