512MB 200 pin DDR2 SODIMM for Lexmark. Parts-Quick Equivalent to Lexmark Part Numbers: 1025042. BEWARE! DO NOT BUY FROM OTHER VENDORS WHO CLAIM THEY ARE SELLING PARTS-QUICK\nBRAND. 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. .\nCompatible with: \nLexmark X860de 3.4 Series, X862dte 3.4 Series, X864dhe 3.4 Series.