Ultrastar SATA Series SSD

Ultrastar SATA Series SSD

Purpose-Built for Cloud, Boot and Edge


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.


Delivering Edge and Cloud Economics

Purpose Built

Performance and endurance options deliver cost-efficiency to Cloud/Edge


Efficient Capacity

With models as low as 120GB, find a drive that fits your needs and budget


Enterprise Grade

All drives offer a 5-year limited warranty and 2M hr MTBF rating



  • 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

Enterprise Solutions Made Affordable by SATA

Everywhere data lives, from sensors to mobile devices to the cloud, we’re driving the innovation necessary to stay ahead of new demands. Our breadth of expertise and level of integration gives us an unmatched ability to deliver carefully calibrated solutions for every type and use of data.


Suitable for:

  • IOT & EDGE
  • Big Data
  • Media & Entertainment
 Ultrastar DC SA620
InterfaceSATA 6 Gb/s
Form Factor2.5-inch 7mm drive
Capacity1.8 DW/D: 1.6TB / 800GB / 400GB

0.6 DW/D: 1.92TB / 960GB / 480GB
Endurance (Drives writes per day, DW/D) 21.8 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 Technology15nm TLC NAND
Performance 3
Sequential Read (max MiB/s, 128KiB)512
Sequential Write (max MiB/s, 128KiB)445
Random Read (max IOPS, 4KiB)76000
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) 41.8 DW/D: 56

0.6 DW/D: 66
Unrecoverable Bit Error Rate (UBER)1 in 10^ 17
MTBF (M hours) 52
Annualized Failure Rate (AFR)0.0044
Availability (hrs/day x days/week)24x7
Limited Warranty 65 years
Requirement (DC, +/- 5%)+5V
Operating (W, typical)3.8 (write) / 2.6 (read)
Idle (W)1.6
Physical Size
z-height (mm)7.17
Dimensions (width x depth, mm)69.85 x 100.2
Weight (g, max)89.9
Operating Temperature 70° to 70°C
Non-operating Temperature-40° to 85°C
 2.5-inch driveM.2 2280
InterfaceSATA 6 Gb/sSATA 6 Gb/s
Form Factor2.5-inch drive2280
Capacity 11.92TB / 960GB / 480GB / 240GB / 120GB1.92TB / 960GB / 480GB / 240GB / 120GB
Endurance (Drives writes per day, DW/D) 20.1 (JESD219 Workloads)

0.7 (128KiB Sequential Workloads)

0.1 (JESD219 Workloads)

0.7 (128KiB Sequential Workloads)

Maximum Terabytes Written (TBW)350 / 175 / 87 / 43 / 21

350 / 175 / 87 / 43 / 21

Flash Memory Technology3D TLC NAND


Sequential Read (max MiB/s, 128KiB)510510
Sequential Write (max MiB/s, 128KiB)475475
Random Read (max IOPS, 4KiB)6400064000
Random Write (max IOPS, 4KiB)50005000
Random Read Latency (ms,typical) 40.150.15
Mixed Random Read/Write
(max IOPS 70%R/30%W, 4KiB, QD32)
(max IOPS 90%R/10%W,4KiB, QD32)
Unrecoverable Bit Error Rate (UBER)1 in 10^17

1 in 10^17

MTBF (M hours) 522
Annualized Failure Rate (AFR)0.0044
Availability (hrs/day x days/week)24x724x7
Limited Warranty 65 years5 years
Requirement (DC, +/- 5%)2.5”: +5V+3.3V
Operating (W, typical)2.5”: 3.8 (write), 2.65 (read)3.8 (write), 3 (read)
Idle (W)0.430.43
Physical Size
z-height (mm)2.5”: 7.0<1.92TB: 2.23, 1.92TB: 2.38
Dimensions (width x depth, mm)2.5”: 69.85 x 100.222 x 80

Weight (g, max)2.5”: <1.92TB: 37.4, 1.92TB: 59.77
Operating Temperature 70° to 70°C0° to 70°C
Non-operating Temperature-55° to 85°C-55° to 85°C