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HGST Travelstar Z7K500
2.5-inch 7mm 7200 RPM Mobile Hard Drive

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HGST Travelstar Z7K500

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High-Performance, Single-Disk 500GB HDD for Mobile Applications

Travelstar Z7K500 is the second generation 7mm, 7200 RPM 2.5-inch hard drive from HGST, with capacities ranging from 250GB to 500GB leveraging Advanced Format, which increases the physical sector size from 512 bytes to 4,096 (4K) bytes to improve drive capacities and error correction capabilities. Travelstar Z7K500 is the first 2.5-inch HDD with a 6Gb/s SATA interface and 32MB of cache and delivers the highest 7200 RPM performance in PCMark Vantage testing. The 500GB per platter, one-disk models are designed as a direct replacement for standard 9.5mm HDDs, for use in notebook PCs, external storage and gaming consoles, as well as new, thinner and more robust device designs. The Z7K500 continues to demonstrate HGST’s ecological leadership with its low power consumption and halogen-free production. Travelstar Z7K500 balances speed, power-efficiency and design flexibility to meet the needs of mobile applications.

Data Security Option

Travelstar Z7K500 is the sixth generation self-encrypting drive (SED) to feature HGST’s Bulk Data Encryption (BDE). The SED model encrypts data in real time using protected keys, providing users the highest level of data protection available. It also speeds and simplifies drive re-purposing. By deleting the encryption key, the data on the drive is rendered unreadable, thereby eliminating the need for time-consuming data-overwrite. For information about the SED models designed to the Trusted Computing Group (TCG) Opal Storage Security specification, please contact your HGST representative.

Enhanced Availability (EA)— for 24x7 Access to Data

HGST provides enhanced availability models of the Travelstar Z7K500 that allow 24x7 access to data to support applications that require round-the-clock operation. The new thinner profile allows for additional cooling, especially important in dense blade server designs. The Z7K500 provides high capacity, durability and quiet acoustics on a proven platform for quality and reliability. EA models support the stringent demands of “alwayson” applications in lower-transaction environments.

HGST Quality and Service

HGST’s mobile hard drives are designed to the highest quality standards and contain field-proven components. HGST provides worldwide technical support and integration services to enable global customers to bring their products to market quickly.

Quick Facts:


  • First 7200 RPM, 500GB in a 7mm, single-disk design
  • Advanced Format, 512-byte emulation
  • First 6Gb/s SATA interface on a mobile HDD
  • Low power consumption
  • Halogen-free for eco-friendly footprint
  • Self-encrypting models for data security
  • Enhanced-availability (EA) models for applications needing around-the-clock access in lower-transaction environments


  • Notebook and ultra-portable PCs
  • Tablets
  • Compact desktop PCs
  • External storage
  • Gaming consoles
  • Compact video devices
  • Network routers (EA)
  • Video surveillance (EA)

Features and Benefits:

  Feature / Function Benefits
Capacity Up to 500GB storage Up to 125 hours of high-definition video, 500 hours of standard video, 178 movies, 125,000 4-min songs or 250 games*
  • Up to 1004Mb/s media transfer rate
  • 32MB cache buffer
Fast downloads and excellent application performance**
Interface SATA 6Gb/s Higher data throughput
  • 1.8W read/write power
  • 0.8W low power idle
Low energy use and long battery life for more “unplugged” notebook time
  • 400G operating shock
  • 1000G non-operating shock
  • TrueTrack technology
  • Best protection against bumps and rough handling
  • Tracking accuracy in high shock or vibration environments
Acoustics Quiet acoustics Richer audio-listening experience for music, movies and games
Security Option Bulk Data Encryption Helps guard against data theft

* Actual storage may vary depending on the compression rate applied. Capacities may not be combined.
**In PCMark Vantage testing


Travelstar Z7K500 HDD

Standard Models Enhanced Availability Models
Interface SATA 6Gb/s SATA 6Gb/s
Capacity1 500GB / 320GB / 250GB 500GB / 320GB
Recording Zones 30 30
Sector Size (Variable, Bytes/sector)2 512e 512e
Max Areal Density (Gbits/sq. in.) 630 630
Data buffer3 (MB) 32 32
Rotational Speed (RPM) 7200 7200
Latency Average (ms) 4.2 4.2
Interface Transfer Rate (MB/sec, max) 600 600
Media Transfer Rate (Mbits/sec, max) 1369 1369
Seek Time (read, ms, typical)4 13 13
Seek Time: Track to Track (typical) ms (read) 1 1
Seek Time: Full Stroke (typical) ms (read) 25 25
Power on Hours (POH) Per Month N/A 730
Load/Unload Cycles 600,000 600,000
Availability5 N/A 24x7
Idle (Bels) 2.3 2.3
Operational (Bels, typical) 2.4 2.4
Requirement +5VDC(+-5%) +5VDC(+-5%)
Startup (W, peak, max) 5.5 5.5
Read/Write (W, avg) 1.8 1.8
Seek (W, avg) 2.1 2.1
Low Power Idle (W, avg) 0.8 N/A
Active Idle (W, avg) 1 N/A
Performance Idle (W, avg) 1.7 1.7
Standby (W, avg) 0.2 0.2
Sleep (W) 0.1 0.1
Physical size
Z-Height (mm) 7 7
Dimensions (width x depth, mm) 70x100 70x100
Weight (g, max) 95 95
Environmental (Operating)
Ambient Temperature 0° to 60°C 0° to 60°C
Shock (half-sine wave) 400G/2ms, 225G/1ms 400G/2ms, 225G/1ms
Environmental (Non-Operating)
Ambient Temperature -40° to 65°C -40° to 65°C
Shock (half-sine wave) 1000G/1ms 1000G/1ms
Acoustics (A-Weighted Sound Power)
Idle (Bels, typical) 2.3 2.3
Seek (Bels, typical) 2.4 2.4

1 One GB is equal to one billion bytes when referring to hard drive capacity. Accessible capacity will vary depending on the operating environment and formatting.
2 Advanced Format drive: 4K physical sectors with 512 byte emulation
3 Portion of buffer used for firmware
4 Excludes command overhead
5 Designed for low duty cycle, non mission-critical applications in PC, nearline and consumer electronics environments, which vary application to application


Download the HGST Travelstar Z7K500 Hard Drives Datasheet (.PDF)


Enhanced Availability Models
HGST Travelstar Z7K500 2.5" 7mm EA SATA Mobile Hard Drive, 320GB
Model# HTE725032A7E630 - Internal HDD, 2.5 Inch, 7.0mm, 320GB, 7200RPM, SATA, Enhanced Availability
Our Price: $60.00
HGST Travelstar Z7K500 2.5" 7mm EA SATA Mobile Hard Drive, 500GB
Model# HTE725050A7E630 - Internal HDD, 2.5 Inch, 7.0mm, 500GB, 7200RPM, SATA, Enhanced Availability
Our Price: $54.00