A hard disk drive (HDD; also hard drive, hard disk, or disk drive) is a device for storing and retrieving digital information, primarily computer data. It consists of one or more rigid (hence "hard") rapidly rotating discs (often referred to as platters), coated with magnetic material and with magnetic heads arranged to write data to the surfaces and read it from them.










![[Back Order] Western Digital 20TB WD Gold Enterprise Class Internal Hard Drive $563.68 Delivered @ Amazon US via AU](https://files.ozbargain.com.au/n/06/756706.jpg?h=0d064232)

![[Used] Seagate Exos X16 ST14000NM001G 3.5 14TB 7.2k SATA 6GB 256MB HDD (Ex-Mining) $217.55 Delivered @ MetroCom eBay](https://files.ozbargain.com.au/n/35/756535.jpg?h=6e1ae828)


![[Pre Order] Western Digital Blue 6TB 3.5" SATA Hard Drive 6GB/S 5400rpm $29 + $5 Delivery ($0 C&C) + Surcharge @ Centre Com](https://files.ozbargain.com.au/n/26/753926.jpg?h=e209ebdb)


![[eBay Plus] Seagate IronWolf NAS 3.5" 7200RPM 10TB Hard Drive $279 Shipped @ Harris Technology eBay](https://files.ozbargain.com.au/n/93/752193.jpg?h=5f5b7c70)

