The HP 300GB SAS 15K 3.5 in Enterprise HDD, model number 581312-001, is a high-performance hard disk drive manufactured by Seagate. With a storage capacity of 300GB and a fast read speed of 15K RPM, this HDD is designed for enterprise use and offers reliable storage solutions for computers and networking systems. The SAS interface ensures efficient data transfer and access, making it a valuable component for businesses looking to enhance their storage capabilities. Pulled from working machine.