This Seagate Exos X20 hard drive offers a massive 20TB storage capacity, making it ideal for storing large amounts of data. With a read speed of 285MB/s and a write speed of 6Gbit/s, it provides fast and reliable performance. The drive is a 3.5 inch form factor and has a depth of 147mm, a height of 26.1mm, and a width of 101.8mm. It is compatible with PCs and has a Serial ATA III connectivity interface. The Seagate Exos X20 also features hot swap technology and has a mean time between failures of 2500000 hours. The drive is designed for internal desktop use and has an operating temperature of 5-60C. This unit is sold in a quantity of 1 or 20 and comes with a 256MB cache.