Random Access Memory (or just Memory) serves as temporary information storage for a processor. The more high-quality RAM your device has, the easier it is to do more and more complex calculations quickly, and the smoother it runs. A stick of HP 501535??001 Memory is an excellent choice for any device that uses 4Rx8 Registered DDR3 DIMM memory. With 4?GB of PC3??8500R DDR3??1066 Memory, this HP 501535??001 DIMM is sure to boost your system’s speed and productivity. This HP 501535??001 Memory has been removed from a working unit, tested for complete functionality by our expert in-house HP-Certified Technician, and is ready to ship today! Purchase with confidence, as the photos above represent the exact quality of your items, and come bundled with our 90 Day Warranty. *Please note, we have additional Refurbished HP Server Memory in stock; feel free to send a message and we will update the quantity to suit your specific needs.* Thank you for choosing AltaTech for all of your lightning-fast IT needs!