FanEngineer Generic New Laptop CPU Cooling Fan For HP TouchSmart 320 520 Envy 23 Series Replacement Part Number 656514-001 CompatibilityThis CPU replacement cooling fan is Compatible with HP TouchSmart 320 520 Envy 23, part number 656514-001 Quality ItemAll items are TESTED rigorously beforeShipping A new working cooling fan can help disperse the heat effectively; A free non-toxic thermal grease comes with a easy-to-use syringes, well to construct or maintain your cooling fan WarrantyComes with a 9-month worry-freeWarranty if you have any pre-sale or after-sale questions please feel free to contact us,we will be happy to assist you ShippingSHIPPED FROM THE U.S. Delivery time takes about 2-5 bussiness days What You GetA Brand New Working CPU cooling fan and thermal grease(FREE)