HGST 0B35049 3.2TB SE SAS Solid State Drive

Hitachi Part #/MPN: 0B35049

DiscTech Item #: HIT-0B35049-BN-5Y

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Enterprise Grade

Capacity: 3.2TB

Speed: Solid State Memory

Interface Types: SAS Serial Attached SCSI

Form Factor: 2.5inx15mm SFF Server Drive

Sector Size: 512 / 512e

Sustained Throughput: 2100/2100

Average Seek Time: 85 μs | 85 μs

Electrical Interface: SAS-3 Serial Attached SCSI v3 - 12.0Gbps


SSD Endurance DWPD: Enterprise Write Intensive

HGST / Hitachi Ultrastar SS300 0B35049 / HUSMM3232ASS204 3.2TB 2.5-Inch SFF 12Gbps MLC Write Intensive SE SAS Solid State Drive - Brand New

HGST / Hitachi Ultrastar SS300 0B35049 / HUSMM3232ASS204 3.2TB / 3200GB 2.5" SFF / Small Form Factor 12.0 Gb/s MLC / 3D Multi-Level Cell NAND Write Intensive 10-DWPD / Drive Writes Per Day SE / Secure Erase SAS / Serial Attached SCSI SSD / Solid State Drive - Brand New

Ultrastar SS300

Increase Productivity and Operational Efficiency by Boosting IOPS Performance with SAS SSDs
As data centers and enterprises struggle to manage the growing abundance and availability of data, the next generation of SAS SSDs with enhanced performance and endurance arrives to help address data access challenges. The Ultrastar® SS300 solid-state drive (SSD) is offered in a 2.5-inch small form factor that delivers ultra-high performance to power through the most challenging workloads.

Designed with a 12Gb/s SAS interface for seamless integration into enterprise environments, the Ultrastar SS300 delivers high sequential throughput, up to 2100MB/s read at 14W power. Available with capacities from 7.68TB to 400GB, the SS300 delivers up to 400,000 read and 200,000 write IOPS—double the speed of current 12Gb/s SSDs—providing rapid access to “hot” enterprise data for higher productivity and operational efficiency. The Ultrastar SS300 family offers significant value in terms of IOPS per Watt, reducing total cost of ownership (TCO) through low power consumption, efficient cooling and reduced space requirements.

Data Durability and Security with Industry-Leading Quality and Reliability
Ultrastar SS300 combines enterprise-grade 3D MLC or TLC NAND flash memory, advanced endurance management firmware and power loss data management techniques to extend reliability, endurance, and sustained performance over the life of the SSD. The Ultrastar SS300 family achieves an extraordinary 0.35% annual failure rate (AFR) or 2.5 million hours mean-timebetween-failure (MTBF). The 3.2TB 10 DW/D capacity Ultrastar SSD endures up to 59 petabytes (PB) of random writes over the life of the drive—the equivalent of writing 16 terabytes (TB) per day for five years.

For complete end-to-end data protection and reliability, the Ultrastar SS300 family incorporates the T10 Data Integrity Field (DIF) standard, extended error correction code (ECC), ExclusiveOR (XOR) parity to protect against flash die failure, parity-checked internal data paths without an external write cache, and an exclusive power loss data management feature that does not require supercapacitors. The Ultrastar SS300 family is backed by a five year limited warranty, or the maximum Petabytes (PB) written (based on capacity), whichever comes first.

Trust Your Storage Systems with SSD Products Developed by Experts in Enterprise Storage
The HGST brand leverages decades of proven enterprise storage expertise in Serial Attached SCSI (SAS) design, reliability, firmware, customer qualification and system integration to the Ultrastar SS300 family. The synergistic relationship between the new throughput-enhancing SSDs and traditional HDDs provides cost effective, end-to-end enterprise-class storage options, delivering reliability, compatibility, capacity, cost and system performance. This combination makes HGST-brand storage drives an ideal choice to help meet escalating reliability, endurance, and performance in the most demanding enterprise environments.

Features & Benefits


  • Feature / Function
    • SAS 12Gb/s interface
    • MLC NAND flash memory
    • 2100 / 2050 MB/s sequential R/W
    • 400K / 200K IOPS random R/W
    • 285K IOPS on 70/30 mixed R/W
  • Benefits
    • 12G Active-Active Dual port & 12G single/dual port for enhanced reliability
    • Highest read/write performance at 14W operating power
    • Maximum throughput and IOPs for ultra-fast access to data. Double write performance of other 12Gb/s SAS SSD


  • Feature / Function
    • 9, 11 & 14 Watt options
  • Benefits
    • Higher IOPS performance with higher power options


  • Feature / Function
    • 7.68TB to 400GB
  • Benefits
    • Higher IOPS performance with higher power options


  • Feature / Function
    • 0.35% AFR (2.5M hours MTBF)
    • 1E-17 bit error rate
    • Power loss data management
    • Unlimited reads, up to 59 PB writes
    • T10 end-to-end data protection
    • Exclusive-OR (XOR) NAND
  • Benefits
    • Reduced field replacement effort
    • Enhanced error detection and correction for optimal data integrity
    • Assures data integrity during power failure
    • Support for extreme write-intensive applications
    • Protection against flash die failure

Data Security

  • Feature / Function
    • Crypto Sanitize models
    • TCG encryption models
    • TCG + FIPS encryption models
  • Benefits
    • Enables swift drive redeployment and retirement
    • Hardware-based encryption protects data from unauthorized use


  • Feature / Function
    • HDD architecture commonality
    • Extensive systems integration and test lab
  • Benefits
    • Higher IOPS performance with higher power options


  • 3D MLC or TLC NAND Flash for ultra-high performance and endurance
  • Best IOPs/Watt for reduced TCO
  • 12Gb/s SAS interface for maximum throughput
  • Advanced power loss data management technology
  • Self-encrypting models conform to TCG’s Enterprise specification


  • Ultra-high performance tier-0 enterprise storage
  • Enterprise-class servers and high performance computing
  • Space and/or power constrained environments
  • Online Transaction Processing (OLTP)
  • Video pre/post-production
  • Financial and e-commerce
  • Database analytics


This drive is compatible with any server that accepts 2.5in x 15mm SFF SAS drives.

HGST Ultrastar SS300
Model Number0B35049
Alt Model NumberHUSMM3232ASS204
Encryption levelNo Encryption, Secure Erase
Interface SAS 6/12Gb/s supports Wide port @ 12Gb/s
Capacity3.2TB / 3200GB
Endurance (Drive Writes per Day - DW/D)10
Endurance (max PB, Rnd write)59
Form Factor2.5-inch SFF
Flash Memory Technology3D Multi-Level Cell (MLC) NAND
Read Throughput (max MB/s, Seq. 128KiB)2100
Write Throughput (max MB/s, Seq. 128KiB)2050
Read IOPS (max, Rnd 4KiB)400K
Write IOPS (max, Rnd 4KiB)200K
Mixed IOPS (70/30 R/W, max R/W, 4KiB)285K
Latency (μs , max)85
Error Rate (non-recoverable, bits read)1 in 10e17
MTBF (M hours)25
Annualized Failure Rate (AFR)0.35%
Availability (hrs/day x days/week)24x7
Requirement (+/- 5%)+5 VDC, +12VDC
Operating Modes (W, typical)
  • 9
  • 11
  • 14
  • Idle (W, max)<3.2TB: 3.7, ≥ 3.2TB: 4.7
    Physical Size
    z-height (mm)15
    Dimensions (width x depth, mm)70.1 x 100.6
    Weight (max, g)140
    Operating Temperature0º to 60º C
    Non-operating Temperature-40º to 80º C
    Shock (half-sine wave, G)1000G (0.5ms), 500G (2ms)
    Vibration, random (G RMS, 5 to 700Hz)2.16 (XYZ)

    Click here to view the manufacturer's item description/brochure

    ROHS Compliant

    Alternate MPNs: HUSMM3232ASS204

    Weight: 1 lb

    Warranty: 5 Year Manufacturer

    Brand New

    Condition Levels Explained

    The product is brand new.

    5 Year Manufacturer Warranty

    Product Warranties Explained

    The product has a manufacturer warranty for the time period specified.