SEAGATE ST4000NM0034 3.5 4TB 7200RPM SAS 12GB - 5 yr Factory Warranty Hard Drive Seagate Technology ST4000NM0034 Seagate Hard Drives 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. ST4000NM0034