by Adam Armstrong

WDC Announces HGST Ultrastar SAS SS300 SSD

Today Western Digital Corp. (WDC) announced its highest-performing SAS SSD to date, the HGST-branded Ultrastar SS300. This new addition to the Ultrastar 12Gb/s SAS SSD family is designed, like the rest of the family, to meet the rigorous data demands of many of the world’s largest companies. The drive was designed in partnership with Intel and has random performances of 400K IOPS read and 200K IOPS write.

The main use cases for the new Ultrastar SS300 drives are virtualized storage systems, databases, and private and hybrid cloud environments. The drive come in capacities up to 7.68TB, enabling customer to consolidate their data centers a bit and get the same data in a smaller footprint. Not only does the new drive have high random performance and high capacity, it is also offered in several endurance classes and power settings (high power consumption for more performance and lower for energy savings). The levels of variety give OEMs lots of flexibility as they create data center gear.

Ultrastar SS300 specifications:

  • Form Factor: 2.5” SFF
  • Interface: SAS 6/12Gb/s supports Wide port @ 12Gb/s
  • NAND: MLC and TLC
  • Capacity
    • MLC: 3.2TB/1.6TB/800GB/400GB
    • TLC: 7.68TB/3.84TB/1.9TB/960GB/480GB
  • Endurance
    • DWPD
      • MLC: 3-10
      • TLC: ~0.5-1
    • MAX PB Written
      • MLC: 2-59
      • TLC: 0.9-14
  • Performance
    • Read Throughput
      • MLC: 2,100MB/s
      • TLC: 2,100MB/s
    • Write Throughput
      • MLC: 2,050MB/s
      • TLC: 1,200-1,250MB/s
    • Read IOPS
      • MLC: 400K
      • TLC: 400K
    • Write IOPS
      • MLC: 170-200K
      • TLC: 80-120K
    • Mixed IOPS
      • MLC: 265-285K
      • TLC: 115-130K
    • Max Latency: 85μs
  • Reliability
    • Error Rate (non-recoverable, bits read): 1 in 10^17
    • MTBF5 (M hours): 2.5
    • Annualized Failure Rate: 0.35%
    • Availability (hrs/day x days/week): 24x7
    • Limited Warranty 5-year
  • Power
    • Requirement (+/- 5%): +5 VDC, +12VDC
    • Operating Modes (W, typical): 9, 11, 14
    • Idle (W, max): <3.2TB: 3.7, ≥ 3.2TB: 4.7
  • Physical
    • z-height (mm): 15
    • Dimensions (width x depth, mm): 70.1 x 100.6
    • Weight (max, g): 140
  • Environmental
    • Operating Temperature: 0° to 60°C
    • Non-operating Temperature: -55° to 85°C
    • Shock (half-sine wave, G): 1000G (0.5ms), 500G (2ms)
    • Vibration, random (G RMS, 5 to 700Hz): 2.16 (XYZ)


The Ultrastar SS300 SSD is currently shipping to OEM partners.

HGST Solid State Solutions

Discuss this story

Sign up for the StorageReview newsletter

Related News and Reviews