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G-Technology 4TB Hot-Swappable Spare 4000 Enterprise Hard Drive

Questions about this product?
  • 4 TB Storage Capacity
  • Hot-Swappable Enterprise-class Spare
  • 7200 rpm
  • Up to 181MB/s Data Transfer Rate 

The G-Technology 4TB Spare 4000 Enterprise Hard Drive is a hot-swappable Spare series drive for use with the G-Technology G-SPEED Studio, G-SPEED Studio XL, G-RAID Studio, and G-RAID arrays. As a Spare series drive, its frame is fitted with a mounting system that only allows it to be used with the mentioned G-Tech products.

This drive allows you to store and access up to 4TB of your data when installed in a G-Technology array. In terms of speed, this drive operates at 7200 rpm and the 64MB cache helps ensure uninterrupted data transfers.

Rotational Vibration Safeguard
Helps maintain drive performance in high rotational vibration environments and multi-drive systems

Thermal Fly-Height Control with internal thermal sensor
Helps lower the soft error rate for improved reliability and performance

Improved Watts per Gigabyte
24% lower W/GB than its predecessor for maximum efficiency

Optional Bulk Data Encryption and TCG Enterprise_A
Encrypt private data, providing improved security and easier redeployment

SATA Interface
The hard drive connects via the SATA 6 Gb/s interface (Rev. 3.0)

In the Box
  • G-Technology 4TB Spare 4000 Enterprise Hard Drive
  • Limited 3-Year Warranty
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More Information
Memory Capacity4TB


  • Interface: SATA III 6 Gb/s
  • Capacity (GB) at 512 bytes/sector: 4 TB
  • Form Factor: 3.5"
  • Sector Size (bytes): 512e, 512n
  • Max areal density (Gbits/sq. in.): 446 (512e), 475 (512n)


  • Data Buffer: 64 MB
  • Rotational Speed: 7200 rpm
  • Interface Transfer Rate (max): 600 MB/s
  • Sustained Transfer Rate (typical): 171 MB/s (512e), 181 MB/s (512n)
  • Seek time (read, typical): 8.0 ms


  • Error rate (non-recoverable, bits read): 1 in 1015
  • Load/Unload Cycles: 600,000 at 104°F / 40°C
  • Availability (hrs/day x days/wk): 24x7
  • MTBF: 2,000,000 hours


  • Idle (Bels, typical): 2.9


  • Requirements: +5 VDC (±5%); +12 VDC (+10%/-8%)
  • Startup Current (A, max): 1.2 (+5 V), 2.0 (+12 V)
  • Read/Write: 11.4 W
  • Idle Average: 6.9 W
  • Unload Idle: 5.7 W

Environment (operating)

  • Ambient Temperature: 41 to 140°F / 5 to 60°C
  • Shock (half-sine wave 2 ms, G): 70
  • Vibration (G RMS, 5 to 500 Hz): 0.67 (XYZ)

Non-Operating Environment

  • Ambient Temperature: -40 to 158°F / -40 to 70°C
  • Shock (half-sine wave, 1ms, G): 300
  • Vibration (G RMS, 5 to 500 Hz): 1.04 (XYZ)

Physical size

  • z-height: 1.0"
  • Dimensions (width x depth): 4.00 (±0.01) x 5.80"
  • Weight (typical): 24.3 oz
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to
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