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Hitachi 0A78743 Travelstar Z7K320

Hitachi 0A78743 Travelstar Z7K320
alaAverage 4.1

1456 reviews

Jun, 2018

alaTest has collected and analyzed 1456 reviews of Hitachi 0A78743 Travelstar Z7K320. The average rating for this product is 4.3/5, compared to an average rating of 4.3/5 for other Hard Drives for all reviews.

On average, users rate this product 86/100 and experts rate this product 77/100.

Review analysis

(Based on 1456 reviews)

Expert Reviews  

User Reviews  


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Consumer review ( review summary for Hitachi 0A78743 Travelstar Z7K320


alaTest has collected and analyzed 86 user reviews of Hitachi 0A78743 Travelstar Z7K320 from The average user rating for this product is 4.0/5, compared to an average user rating of 4.1/5 for other Hard Drives on

83% of the reviews on give this product a positive rating.


Jun, 2018

Expert review by (

Hitachi Deskstar 1TB HDS721010KLA


We find it hard not to gawp, slack jawed, at this miraculous Hitachi drive. For anyone who remembers the heady days when 20MB hard drives were the norm, it's sometimes hard to comprehend how 1,000,000MB can now be squeezed into the same space

Huge storage, Great performance

Both storage and performance make this one of the leading drives on the market

Aug, 2007


Expert review by (

Hitachi Travelstar Z7k320 review


It's often difficult to find replacement hard disks for an ultra-portable laptop or netbook, as most 2.5in disks are still too large to fit inside such compact systems. Anyone looking to upgrade should consider the slim Hitachi Travelstar Z7K320, as...

Not the largest capacity, but solid performance makes this an ideal upgrade disk for an aging laptop disk that's filled to capacity.

May, 2011

Expert review by : Madana Prathap, (

Hitachi TravelStar 7K500 500GB review


The Hitachi TravelStar 7K500 500GB hard disk drive has a 2.5-inch form factor.

The usual argument against 7200rpm drives for laptops was built around increased vibration, heat and power consumption as compared to normal drives. The Hitachi TravelStar 7K500 500GB drive manages to strengthen its case by providing improved speed yet...

Mar, 2010

Expert review by (

Hitachi Deskstar 7K1000.B-750 review


Hitachi's 750GB 7K1000.B-750 has one of the lowest costs per gigabyte in this test, beaten only by a fraction of a penny by Seagate's 1.5TB Barracuda.

Mar, 2009

Expert review by : Andrew Harrison (

Hitachi Travelstar 7K320 notebook drive review


Travelstar is the name of Hitachi's range of 2.5in hard disk drives, designed for use in notebook computers. The latest Travelstar range includes high-performance 7200rpm models, now available in capacities up to 320GB.

Exchanging the original 5400rpm hard disk with the Hitachi 7200rpm drive introduced a clear and measurable increase in system performance. The trade-off is a slight increase in disk noise and vibration, but this should only be apparent in quiet...

Feb, 2009

Expert review by (

Hitachi Ultrastar A7K1000 HUA721010KLA330 review


Unlike the other Hitachi disks here, the Ultrastar comes with a five-year warranty.

Feb, 2008

Expert review by (

Hitachi Deskstar T7K500 400GB review

May, 2007


Expert review by : Melissa J Perenson (

Hitachi Deskstar 7K1000 1TB hard drive


The Hitachi Deskstar 7K1000 is the UK's first single 1TB (terabyte) hard drive. And our review of the Hitachi Deskstar 7K1000 shows it can hold 150 high-definition movies or more than 300,000 high-resolution photos.

Vast capacity and superb performance more than make up for the expense. Hitachi is the first to the 1TB hard drive market with the Hitachi Deskstar 7K1000, and this is one case where first may mean best.

May, 2007

Expert review by : Mark Hattersley & Andrew Harrison (

Hitachi Travelstar 7k320 320GB review


Upgrading the hard drive in the MacBook and MacBook Pro is easier than you think. So why not get one that's faster while you're at it? We take a look at putting a Hitachi 320GB 7200 rpm drive in a MacBook.

Larger and faster than the stock MacBook hard drive, cheaper than an Apple upgrade

Slightly noisier than the stock upgrade

Exchanging the original 5400rpm hard disk with the Hitachi 7200rpm drive introduced a clear and measurable increase in system performance. The trade-off is a slight increase in disk noise and vibration, but this should only be apparent in quiet...

Mar, 2009

Expert review by : Andrew Harrison (

Hitachi Travelstar 7K320 notebook drive review


Hitachi's new 320GB 7200rpm notebook drive promises a step-up in performance for your laptop

Exchanging the original 5400rpm hard disk with the Hitachi 7200rpm drive introduced a clear and measurable increase in system performance. The trade-off is a slight increase in disk noise and vibration, but this should only be apparent in quiet...

Feb, 2009

Product Specifications

The Hitachi Travelstar 5K80 series is a 9.5mm high, 5400 RPM, 2.5-inch mobile hard disk drive ideal for today's data-intensive business needs. The Travelstar 5K80 brings a new generation of 5400 RPM mobile solutions to the long legacy of the Travelstar family of hard disk drives. This next generation of mobile hard disk drives provides a design which combines years of research and development with award-winning technology including: Antiferomagnetically-coupled (AFC) technology "pixie dust", Giant Magnetoresistive (GMR) heads, Fluid Dynamic Bearing (FDB) motor technology, Partial Response Maximum Likelihood (PRML) digital channel, head load/unload technology, Enhanced Adaptive Battery Life Extender (ABLE) 3.0, and an ATA/100 interface. With this design, the Travelstar 5K80 provides the storage capacity, performance, power management, quality and acoustics required by demanding computing/application requirements. The Travelstar 5K80 reaches areal densities of up to 70Gbits/ per square inch written on each disk. This feat was achieved by adding another layer of "Pixie Dust"- or in more technical terms, another ruthenium/magnetic layer to create a five-layer sandwich called laminated "Pixie Dust". These additional layers bring even higher thermal stability to the media, allowing data recording at ultra-high densities while maintaining data-integrity. Designed to meet the demanding needs of today's data-intensive requirements, the Travelstar 5K80 leverages proven technologies such as True Track Servo, which eases system integration, enhances hard disk drive reliability, and adds robustness against vibration and disk shift, Drive Fitness Test (DFT), and S.M.A.R.T. (Self-Monitoring Analysis and Reporting) technology which is designed to enable a hard drive to predict impending catastrophic failure. As a result of the award-winning combination of technology designed into the Hitachi Travelstar 5K80 series of hard disk drives, they are suitable for demanding, high-capacity Internet, digital audio and video editing, video streaming, and real-time multimedia applications - whether users are in the office or on the road.

AV Furniture

Recommended Use:Monitor
Type:Mounting kit

Dimensions & Weight


Environmental Standards

ENERGY STAR Qualified: Yes
EPA Energy Star Compliant: Yes

External Hard Drive

Power Source:FireWire bus / USB bus/USB bus


Product Type:Power adapter
Subcategory (AG):Power adapters

Hard drive

Drive device, buffer size:2
Hard Drive Capacity:160 / 80
Hard Drive Interface:USB 2.0
Hard drive speed:7200


Compatibility:Mac / PC/Mac / PC / Unix/PC
Country Kits:Europe
Manufacturer:Belkin Components/Hitachi/IBM/LaCie
Model:1:1 HDMI/40GN/5K100/5K80/7K100/7K1000.B/7K1000.C/7K320/7K80/80GN/A7K1000/E7K100/E7K1000/Firewire/FireWire and USB 2.0/Hard Drive Extreme/USB/USB 2.0
Packaged Quantity:1
Product Line:Belkin CAT5e Extender/Hitachi/Hitachi Deskstar/Hitachi Travelstar/Hitachi Ultrastar/LaCie Bigger Disk/LaCie Bigger Disk Power Supply/LaCie d2/LaCie Hard Drive Design by F. A. Porsche/LaCie Mobile Drive/LaCie Mobile Hard Drive Design by F.A. Porsche/LaCie Wall Bracket for LCD


Microsoft Certification:Compatible with Windows 7/Works with Windows Vista
Vista Certification:Works with Windows Vista


Connectivity Technology:Wired
Form Factor:External
Type:Video/audio extender

Other features

Compatibility:PC & Mac
Compatible operating systems:Windows 98 Second Edition, Windows 2000, Windows Me, Windows XP; Mac OS 9.1, Mac OS 10.2.1
Dimensions (WxDxH):112 x 188 x 35
Internal: No
Mac compatibility: Yes
Minimum processor:Intel Pentium II 350MHz/ iMac, Power Mac G3 / Intel Pentium II 350MHz/iMac, Power Mac G3
Minimum RAM:32
Read seek:11
Write seek:11

Ports & interfaces

USB Connectivity:Y
USB version:2.0


USB powered: No

Power Device

Form Factor (AG):External

Service & Support

Type:1 year warranty /2 years warranty /3 years warranty /5 years warranty


Type:Hard drive

Storage Controller

Type: None

Storage Controller (2nd)

Type: None

Storage Hard Drive

Average Seek Time:10ms/11ms/12ms/8.2ms/8.5ms/8.8ms
Buffer Size:16MB/2MB/32MB/8MB
Data Transfer Rate:100MBps/133MBps/150MBps/300MBps
Form Factor:2.5"/2.5" x 1/8H / 2.5 x 1/8H/3.5"/3.5" x 1/3H / 3.5 x 1/3H
Form Factor (metric):6.4 cm/6.4 cm x 1/8H/8.9 cm/8.9 cm x 1/3H
Form Factor (Short):2.5"/3.5"
Form Factor (Short) (metric):6.4 cm/8.9 cm
Hard Drive Type:External hard drive/Internal hard drive/Removable hard drive
Interface:ATA-100/ATA-133/Hi-Speed USB/Hi-Speed USB / IEEE 1394 (FireWire)/Hi-Speed USB / IEEE 1394b (FireWire 800) / IEEE1394 (FireWire)/IEEE 1394 (FireWire)/IEEE 1394b (FireWire 800) / IEEE1394 (FireWire)/Serial ATA-150/Serial ATA-300
Interface Type:ATA-100/ATA-133/Hi-Speed USB/IEEE 1394 (FireWire)/IEEE 1394 (FireWire) / Hi-Speed USB/IEEE 1394b (FireWire 800) / IEEE1394 (FireWire)/IEEE 1394b (FireWire 800) / IEEE1394 (FireWire) / Hi-Speed USB/Serial ATA-150/Serial ATA-300
Spindle Speed:4200rpm/5400rpm/7200rpm

Weight & Dimensions