32MB 100 pin SDRAM DIMM for HP. Parts-Quick Equivalent to HP Part Numbers: C7845A C4143A Q7707A. Compatible with: HP LaserJet 4000 HP LaserJet 4000N, HP LaserJet 4000se,HP LaserJet 4000T, HP LaserJet 4000TN, HP LaserJet 4050, HP LaserJet 4050N, HP LaserJet 4050se, HP LaserJet 4050T, HP LaserJet 4050TN, HP LaserJet 5000,HP LaserJet 5000DN, HP LaserJet 5000GN, HP LaserJet 5000N, HP LaserJet 8000, HP LaserJet 8000DN, HP LaserJet 8000N, HP LaserJet 8100 HP LaserJet 8100DN, HP LaserJet 8100N. System Specific memory backed by Parts-Quick Lifetime Warranty and Toll Free Technical Support.