Attention: The four main fan original factory for: 1.DELTA 2.SUNON 3.FORCECON 4.ADDA So maybe we will send by random,hope you can understand,thank you. Features: Condition:stock,with tiny scrathces,tested working well Compatiblemodels for: Dell Inspiron 15z 5523 Part Number For: DFS481105F20T DC 5V 0.5A,DP/N 23.10717.001 /0N5RM9 T6V7J Power Connector:3 Wires Please tell me which manufacturer you need If neceary , or we will ship the goods in random, please understand.T hank you. Fan'sFunction: 1.It protects your valuable data by keeping your CPU cool 2. The CPU fan features efficient heat diipation and low noise 3. You can work as long as you like without overheating your computer 4. Keep your computer cool and comfortable on your lap or at your desk with this CPU fan 5. Made of high-quality material, it is durable in use 6. Perfect design for high compatibility and excellent compose How to maintain CPU fan 1.Do not put a computer in dusty places 2.regular cleaning of dust and lubricants, every six months or every year, it is recommended to bring anti-static gloves Note: 1.Please allow 1-3mm error due to manual measurement.Please make sure you do not mind before you bid. 2. Lighting,display and other factors may cause COLOR SHADING,please comprehensive pictures and text descriptions to determine!