All stock codes associated to this product
HUH721010AL4200, 0F27402
HGST 0F27402 10TB Ultrastar He10 3.5-inch Helium 
Platform Enterprise Hard Drive
 
Highlights
  - High Capacity – 10TB HDD, drop-in ready for mainstream enterprise 
  
- Low Power – 47% more efficient (Watts/TB) than air-filled drives 
  
- Most Reliable – Best-in-class reliability rating of 2.5M hours 
MTBF
Overview
Laying the foundation for a worry-free data center, HGST delivers the very 
best capacity hard drive in the industry Ultrastar He10. The He10 uses PMR 
technology and is the industrys first 10TB drive that is drop-in ready for any 
enterprise-capacity application or environment. Based on field proven, 
third-generation HelioSeal technology, it offers the lowest power profile in the 
industry to help data center architects meet eco-environmental goals and 
requirements. Targeted at 2.5M hours MTBF, the He10 provides the highest 
reliability rating available of all HDDs on the market today by building on the 
successful design of its 8TB and 6TB predecessors. Trust HGST and Ultrastar He10 
to deliver more capacity, more efficiency, more reliability and more value to 
your data center.
Industrys Best Capacity, Power Efficiency and Reliability Delivers 
Value to the Data Center
Laying the foundation for a worry-free data center, HGST delivers an 
exceptional capacity hard drive for the enterprise Ultrastar He10. The He10 uses 
PMR technology and is the industrys first 10TB drive that is drop-in ready for 
any enterprise-capacity application or environment. Based on field proven, 
third-generation HelioSeal technology, it offers one of the lowest power 
profiles in the industry to help data center architects meet eco-environmental 
goals and requirements. Targeted at 2.5M hours MTBF, the He10 provides the 
highest reliability rating available of all HDDs on the market today by building 
on the successful design of its 8TB and 6TB predecessors. Trust HGST and 
Ultrastar He10 to deliver more capacity, more efficiency, more reliability and 
more value to your data center. 
HelioSeal® Technology Helps Solve Challenges Facing Next Generation 
Data Centers
Data centers are facing growing pressures. Data volume is expanding, 
operating costs are rising, yet budgets remain flat. Lowering the total cost of 
ownership (TCO) has become the focus of data center architects and the Ultrastar 
He10 provides the best value proposition and greatest storage efficiency 
available. Compared to 8TB air-filled drives, this HelioSeal hard drive provides 
25% more capacity, uses 34% less idle power, is 47% more power efficient 
(Watts/TB), and is 25% more reliable, rated at 2.5M hours MTBF. New features 
include a second-generation, dual-stage actuator the HGST Micro-Actuator 
enhancing head-positioning accuracy to deliver better performance, data 
integrity and overall drive reliability, especially in multi-drive environments 
where operational vibration is present. Refer to our HMA technical brief to 
learn more. A choice of 6Gb/s SATA and 12Gb/s SAS interface enables easy 
integration into high performance data centers. 
Data Durability and Security with Industry-Leading Quality and 
Reliability
As drive capacity grows beyond single-digit TBs, object storage systems with 
erasure coding provide better data durability compared to RAID systems, given 
its tolerance for simultaneous errors conditions. Ultrastar He10 is a bestfit 
for object storage implementations given its massive capacity and 
industryleading reliability rating. Compliance and privacy requirements drive 
the need for increased data security. Ultrastar He10 offers security and 
encryption options to protect data from unauthorized use, including a new option 
for TCG support on some SATA models. 
HGST Quality and Service
Ultrastar He10 extends the HGST brands long-standing tradition of performance 
and capacity leadership. The proven drive design enables high reliability and 
availability to customer data. Ultrastar quality, performance and world class 
technical service and support provides customers with a lower total cost of 
ownership over previous generations. HGST drives are backed by an array of 
technical support and services, which may include customer and integration 
assistance. Dedicated to providing a complete portfolio of devices and systems, 
HGST products help the world harness the power of data.
Specifications
  
  
    | General | HUH721010AL4200 / 
      0F27402 | 
  
    | Interface | SAS 
      12Gb/s | 
  
    | Capacity 
      (GB) | 10,000GB | 
  
    | Sector Size (Variable, 
      Bytes/sector) | 4Kn: 4096, 4112, 4160, 
      4224 | 
  
    |  | 512e: 512, 520, 
      528 | 
  
    | Max Areal Density 
      (Gbits/sq. in.) | 816 
      (10TB) | 
  
    |  |  | 
  
    | Performance |  | 
  
    | Data Buffer 
      (MB) | 256 | 
  
    | Rotational Speed 
      (RPM) | 7200 | 
  
    | Latency Average 
      (ms) | 4.16 | 
  
    | Interface Transfer Rate 
      (MB/sec, max) | 1200 | 
  
    | Sustained Transfer Rate 
      (MB/sec, typ.) | 249MB/s (10TB) / 
      225MB/s (8TB) | 
  
    |  | 237Mib/s (10TB) / 
      215Mib/s (8TB) | 
  
    | Seek Time (read, ms, 
      typical) | 8.0 (Read), 8.6 
      (Write) | 
  
    |  |  | 
  
    | Reliability |  | 
  
    | Error Rate 
      (non-recoverable, bits read) | 1 in 
      10^15 | 
  
    | MTBF (M 
      hours) | 2.5 | 
  
    | Annual Failure Rate 
      (AFR) | 0.35% | 
  
    | Load/Unload 
      Cycles | 600,000 | 
  
    | Availability (hrs/day x 
      days/wk) | 24x7 | 
  
    | Reliability - Warranty 
      (yrs) | 5 | 
  
    |  |  | 
  
    | Acoustics |  | 
  
    | Idle 
      (Bels) | 2.0 (Idle) / 3.6 
      (Operating) | 
  
    |  |  | 
  
    | Power |  | 
  
    | Requirement | +5 VDC, 
      +12VDC | 
  
    | Operating (W, 
      typical) | 9.5 | 
  
    | Idle 
    (W) | 5.8 | 
  
    | Power Consump. 
      Efficiency Index (W/GB) | 0.58W/TB | 
  
    |  | 0.00058W/GB | 
  
    |  |  | 
  
    | Physical 
      Size |  | 
  
    | Z-Height 
      (mm) | 26.1 | 
  
    | Dimensions (width x 
      depth, mm) | 101.6 (+/-0.25) x 
      147 | 
  
    | Weight (g, 
      max) | 660 | 
  
    |  |  | 
  
    | Environmental 
      (operating) |  | 
  
    | Ambient 
      Temperature | 5 to 
    60C | 
  
    | Shock (half-sine 
      wave) | 70 | 
  
    | Vibration (5 to 500 
      Hz) | 0.67G RMS 
      (XYZ) | 
  
    |  |  | 
  
    | Environmental 
      (non-operating) |  | 
  
    | Ambient 
      Temperature | -40 to 
      70C | 
  
    | Shock (half-sine 
      wave) | 300 (2ms) / 150 
      (11ms) | 
  
    | Vibration (5 to 500 
      Hz) | 1.04G RMS 
      (XYZ) |