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Ultrastar DC SA620
Purpose-Built for Cloud, Boot and Edge

Ultrastar DC SA620

Ultrastar DC SA620
Ultrastar DC SA620
Ultrastar DC SA620
Contact us for pricing!

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Optimized for Read-Intensive Workloads in the Cloud and at the Edge

Cloud and Software-defined Storage environments require elastic infrastructure to be able to adapt to continuously changing workload and data requirements. Delivering performance and capacity at the right time, while staying on budget, is essential to success. Western Digital’s Ultrastar DC SA620 SATA SSDs enable price/performance with mixed-use endurance options to support elasticity required for cloud data centers to succeed. SATA SSDs also play a role in edge computing, where applications like content delivery networks (CDNs) are moving away from centralized data centers to locations closer to those who are consuming the content. In such environments, data access speed is essential. SATA SSDs are key to delivering cost-effective performance for these read-intensive environments. Our purpose-built Ultrastar DC SA210 drives deliver price/performance to edge servers and read-intense CDNs, and are also well-suited for use as boot drives. With capacities as low as 120GB up to 1.92TB, you can choose the right capacity point for your operating system and logging requirements.





  • Capacities as low as 120GB and up to 1.92TB
  • Up to 512 MiB/s read and 475 MiB/s write sequential throughput
  • Drop-in ready 6 Gb/s SATA interface works in existing infrastructure
  • Enterprise data durability features
  • Options for read-intense and mixed-use workloads
  • Enterprise-class 2M hour MTBF reliability rating

Applications and Workload

  • IaaS, PaaS, and SaaS Infrastructure
  • Social Media, Web Servers
  • Software-Defined Storage (SDS)
  • eCommerce, Micropayments
  • Enterprise Server Boot
  • Video Streaming, Video-on-Demand
  • Audio Streaming and File Servers
  • Read-intensive applications that benefit from faster data access


Interface SAS 6 Gb/s
Form Factor 2.5-inch 7mm drive
Capacity 1.8 DW/D: 1.6TB / 800GB / 400GB
0.6 DW/D: 1.92TB / 960GB / 480GB
Endurance (Drives writes per day, DW/D) 1.8 DW/D: 1.8 for 5 years -or- 3 for 3 years
0.6 DW/D: 0.6 for 5 years -or- 1 for 3 years
Maximum Terabytes Written (TBW) 1.8 DW/D: 5,256 / 2,628 / 1,314
0.6 DW/D: 2,102 / 1,051 / 526
Flash Memory Technology 15nm TLC NAND
Sequential Read (max MiB/s, 128KiB) 512
Sequential Write (max MiB/s, 128KiB) 445
Random Read (max IOPS, 4KiB) 76,000
Random Write (max IOPS, 4KiB) 1.8 DW/D: 32,000
0.6 DW/D: 16,000
Mixed Random Read/Write (max IOPS 70%R/30%W, 4KiB) 1.8 DW/D: 52,000
0.6 DW/D: 28,000
Write Latency (μs, average) 1.8 DW/D: 56
0.6 DW/D: 66


Download the Ultrastar DC SA620 Datasheet (PDF).

Pricing Notes:

Ultrastar DC SA620
Ultrastar DC SA620
Ultrastar DC SA620
Contact us for pricing!