, Condition: Tested and working in good, used condition. , . , Brand: HP , MPN: 647113-001 , Model: HP 647113-001 , Compatible model(s): Z820, Z840 , Type: Case Fan , Included items: Dual fan assembly & plastic casing. Please note: We do not post to PO boxes. We are happy to help, any problems or questions please send us a message and we will endeavour to resolve the issue promptly.