SEAGATE ST9640320AS SEAGATE 640GB 2.5 SATA 6 MONTHS WTY (MINIMUM ORDER 50 PCS) Seagate-ST9640320AS-P-N-9RN134-020-F-W-0001HPM1-WU-640GB Please ensure that your original part number matches this exactly, or check with the manufactuer for compatiblity. Customers are responsible for compatiblity. This part is guaranteed to be fully functional, original and authentic. Seagate-ST9640320AS-P-N-9RN134-020-F-W-0001HPM1-WU-640GB