One 512MB PC2100 100-PIN DDR DIMM

Compatible: HP LaserJet 4240 4240n 4240tn 4250 4250n 4250tn 4250dtn 4250dtnsl 4345 4345x 4345xs 4345xm 4350n 4350tn 4350dtn 4350dtnsl 5200 5200n 5200tn 5200dtn 9040 9040n 9040dn 9040mfp 9050mfp 9050 9050n 9050dn M4345 M4345x M4345xs M4345xm