[ G01-1507-CR-5YR ] Seagate Exos X20 ST18000NM003D 18TB 7200RPM SATA 6Gb/s 256MB Cache CMR 3.5-Inch Enterprise Hard Drive (Certified Refurbished) - 5 Year Warranty When building maximum density server and storage solutions with Seagate's 18TB Enterprise Capacity 3.5 HDD (Helium), you can rest easy knowing that your storage infrastructure can scale to meet your growing capacity needs while offering consistent and predictable response rates. Enterprise Capacity 3.5 HDD (Helium) supports enterprise-class nearline workloads of 550TB/yr and is backed by a 2.5M-hour MTBF and 5-year limited warranty, helping to meet all of your bulk storage SLAs. Imagine 9PB in a 42U Rack The Seagate 18TB Enterprise Capacity 3.5 HDD (Helium) is engineered to lower the total cost of ownership in today's large-scale data centers. You can build maximum-density storage solutions that scale to meet your future capacity needs—while slashing your TCO. Built for Speed—Right Where It's Needed The Seagate 18TB Enterprise Capacity 3.5 HDD (Helium) lets you turbocharge data transfers with dependably fast read/write performance. Get 20% better random write performance over previous-generation HDDs. Manage increasing volumes of data in cloud data centers much faster thanks to advanced write caching algorithms. Minimal TCO. Maximum Reliability. The lowest power consumption in its class helps you drive down power and cooling costs. Dramatically reduce IOPS/watt while improving rack density thanks to lowest-in-class drive weight. Better hermetically sealed design means a more dependable drive. Premium materials ensure maximum reliability. For industry-best data security, these drives even offer SD&D, SED, and FIPS support. 5-year limited warranty. 10g lighter per drive (2% lighter in a 42U rack). 2.5M hours MTBF (mean time between failures). 550TB/yr workload rate limit (10x desktop drives).