512MB 100 pin DDR DIMM SODIMM for Lexmark. Parts-Quick Equivalent to Lexmark Part Numbers: 13N1526, 1022301, 40X5939. \nBEWARE! DO NOT BUY FROM OTHER VENDORS WHO CLAIM THEY ARE SELLING PARTS-QUICKBRAND. OUR WARRANTY IS ONLY FOR ITEMS PURCHASED DIRECTLY FROM PARTS-QUICK. ALL PRODUCTS BRANDED AS PARTS-QUICK ARE TO BE SOLD SOLELY BY PARTS-QUICK. PARTS-QUICK DOES NOT AUTHORIZE THE USE OF IT'S BRANDED PRODUCTS TO OTHER SELLERS. . Compatible with: Lexmark C770n, C772n, C780DN, C780N Series.