256MB SDRAM DIMM for HP. Parts-Quick Equivalent to HP Part Numbers: C9635A, Q7712A. BEWARE! DO NOT BUY FROM OTHER VENDORS WHO CLAIM THEY ARE SELLING PARTS-QUICKBRAND. OUR WARRANTY IS ONLY FOR ITEMS PURCHASED DIRECTLY FROM PARTS-QUICK. ALLPRODUCTS BRANDED AS PARTS-QUICK ARE TO BE SOLD SOLELY BY PARTS-QUICK. PARTS-QUICK DOESNOT AUTHORIZE THE USE OF IT"S BRANDED PRODUCTS TO OTHER SELLERS. Compatible with:HP Printer Color LaserJet 5500 Series 5500, 5500n, 5500dn, 5500dtn, 5500hdn.