Seagate Exos X20 and IronWolf Pro 20TB Expand Retail 20TB HDD Options
 

Seagate has updated their flagship capacity options for the retail HDD market with the availability announcement for two new hard drives today - the Exos X20 and IronWolf Pro 20TB. These two models join the recently-released Western Digital WD Gold 20TB and Ultrastar HC560 to round out the 20TB hard drives currently available for retail purchase.

The Exos X20 comes with SATA as well as SAS 12Gbps interface options, and includes SED (self-encrypting drive) models while the IronWolf Pro is SATA-only (similar to previous generations). The Exos X20 has a workload rating of 550 TB/yr, while the IronWolf Pro version is rated for 300 TB/yr. A detailed comparative summary of the different specifications of the two new drives and how they stack up against the Western Digital offerings is provided in the table below. Only the SATA options of the Exos X20 and the Ultrastar HC560 are being considered for this purpose. The two model numbers corresponding to these are for the SED and non-SED (standard) options.

https://www.anandtech.com/show/17099...tb-hdd-options