1GB STICK DIMM DDR NON-ECC PC3200 400MHz For HP-Compaq HP Pavilion Desktop. Designed For HP-Compaq HP Pavilion Desktop: A1378cl, A1383w, A1388d, A1391cl, A1392cl, A1393cl, A1398cl, A1400e, A1400y, A1407.fr, A1408.dk, A1409.it, A1409.no, A1410n, A1414.fr, A1417.it, A1419.pt, A1420.fi, A1420.uk, A1420la, A1428x, A1429.fi, A1429.uk, A1450n, A1467c, A1469.fr, A1477c, A1483w, A1510cn, A1510n, A1511cl, A1512cl, A1513cl, A1513cn, A1528x, A1530e, A1534x, A1540n (DDR), A1547c, A1547c-b, A200e, A229.fr. Will also work with many other brands and models. Genuine A-Tech Brand: A-Tech is one of the most trusted names in Premium Memory. Backed by a Lifetime Warranty and 5 star customer support, A-Tech has you covered! Memory upgrades have never been easier. Designed specifically to help your computer run faster and smoother, an A-Tech memory upgrade is one of the fastest, most affordable, and easiest ways to improve system performance. A-Tech memory empowers your computer to achieve faster application loading times, faster system responsiveness, and increased ability to multitask and handle data-intensive programs. A-Tech modules are rigorously tested to ensure that your memory meets our stringent compatibility and performance standards. Every A-Tech ram module is tested for complete functionality before it leaves our doors and includes toll free technical support at 1-866-557-4527. Give your computer the best, trust A-Tech!