Hitachi Travelstar
®
4K120
2 . 5 - I N C H H A R D D I S K D R I V E S
120GB, 100GB, 80GB, 60GB and 40GB | 4200 RPM | ATA-7
Most power-efficient, super cool operation
Highlights
> Performance that rivals other 4200 RPM
mobile drives
> Coolest operation
> Optimum power efficiency with Enhanced
ABLE™ and HiVERT™
> Industry-leading robustness in both non-
op and operating shock
> Parallel ATA-7 with option for A/V streaming
> RoHS compliant
Applications
> Notebook PCs
> External storage solutions
> Free-to-air Set Top Boxes
> Digital jukeboxes
> Entry-level DVR and PVR devices
Ext e ndin g the co n cept o f cool
The Travelstar 4K120 extends Hitachi’s hard
drive leadership with a series of hard drives
offering storage capacities of 120GB to 40GB
which set new standards for power efficiency
and heat dissipation. The two-platter 120GB
drive consumes up to 178% less power than
other 4200 RPM drives through a combination
of Enhanced Adaptive Battery Life Extender™
(ABLE) and Hitachi Voltage Efficiency Regulator
Technology™ (HiVERT)— innovations invented by
Hitachi. This directly results in longer battery
and service life of the Travelstar drive as well as
the host system supported. While lower power
is usually associated with reduced performance,
Hitachi maintains its high standard for performance with a 16% boost in sustained data
throughput from its previous generation 4200 RPM
drives, to provide a winning combination of high capacity, cool and quiet operation, performance, as well as superior shock tolerance on a proven platform for quality and reliability.
Enhanced s t o rage o p t i o n s
The Travelstar 4K120 is the first 2.5-inch hard drive to utilize the ATA/ATAPI-7 standard
as well as the AV Streaming Command Set, trademarked by Hitachi as Smooth Stream™
Technology. Hitachi introduced Smooth Stream on its 3.5-inch Deskstar 7K400 product line
and now incorporates that industry-leading expertise in Travelstar drives. When Smooth
Stream is enabled, the Travelstar 4K120 offers cooler and quieter operation for challenging
A/V environments that require less power, noise or a smaller footprint. Hitachi enhances the
storage options available for consumer electronics devices that require high quality audio
and video at maximum value with the Travelstar 4K120.
Feature s and Benefits
Feature / Function Benets
Capacity 120GB, 100GB, 80GB, 60GB, 40GB Highest capacity available in 4200 RPM with broad
range of capacity options
Performance Up to 380Mb/sec media transfer rate Performance that surpasses other 4200 RPM drives
Optimized cache
Reliability 300G operating shock Exceptional tolerance of rough handling
1000G non-operating shock and improved durability
600,000 load/unload cycles Minimizes disk wear and protects user data
TrueTrack Technology™ Tracking accuracy in high shock or vibration environments
Acoustics Fluid Dynamic Bearing Motors (FDB) Barely audible operation
Power High Voltage Efficiency Regulator Increases power efficiency and reduces heat emission
Technology™ (HiVERT) for longer battery usage and enhanced service life
Enhanced Adaptive Battery Life Maximizes power utilization while maintaining
Extender™ (ABLE) performance for optimum user experience
Interface Parallel ATA-7 Mainstream legacy applications
Smooth Stream™ Technology ready Optional feature for A/V applications
Hitachi q u a l i t y a n d s e r v i c e
Hitachi Travelstar hard disk drives are designed to the highest quality standards and contain
field-proven components to provide superior data storage backed by Hitachi warranty.
Hitachi provides worldwide technical support and services to enable global customers to
bring their products to market quickly.
www.hitachigst.com
H i t a c h i T r a v e l s t a r® 4 K 1 2 0
Product Travelstar 4K120
Model names HTS421212H9AT00
HTS421210H9AT00
HTS421280H9AT00
HTS421260H9AT00
HTS421240H9AT00
Specications
Conguration PATA
Interface ATA-7
Capacity (GB)1 120 / 100 / 80 // 60 / 40
Sector size (Bytes) 512
Recording zones 24
Data heads (physical) 4 / 4 / 3 // 2 / 2
Data disks 2 / 2 / 2 // 1 / 1
Max. areal density (Gbits/sq. inch) 98
Performance
Data buffer (MB)2 8 // 2
Rotational speed (RPM) 4200
Latency average (ms) 7.1
Media transfer rate (Mbits/sec, max) 380
Interface transfer rate (MB/sec, max) 100 Ultra DMA mode-5
16.6 PIO mode-4
Seek time (read, typical)
Average (ms) 11
Track to track (ms) 1.0 R / 1.1 W
Full stroke (ms) 20 R / 21 W
Reliability
Load/Unload cycle 600,000
Power
Requirement +5VDC (+-5%)
Dissipation (Typical)
Startup (peak, max.) 4.5W
Seek 1.7W
Read (avg.) 1.4W
Write (avg.) 1.4W
Performance idle (avg.) 1.25W
Active idle (avg.) 0.65W
Low power idle (avg.) 0.45W
Standby (avg.) 0.15W
Sleep 0.1W
Physical Size
Height (mm) 9.5
Width (mm) 70
Depth (mm) 100
Weight - max (g) 99 // 95
Environmental characteristics
Operating
Ambient temperature 5° to 55° C
Shock (half sine wave) 300 G / 2ms
Non-operating
Ambient temperature -40° to 65° C
Shock (half sine wave) 1000 G / 1 ms
Acoustics (A-Weighted Sound Power (Bels))
Idle (typ.) 2.3 // 2.0
Op (typ.) 2.7 // 2.4
RoHS compliant3 yes
1
GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less
2
Upper 428KB reserved for firmware
3
RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in
electrical and electronic equipment.
Hitachi Global Storage Technologies
Fo r m o re i n form a tion :
Internet:
> www.hitachigst.com (Main Web site)
> www.hitachigst.com/vpp (Reseller Web site)
Technical Support E-mail:
> support_usa@hitachigst.com (N. America)
> support_ap@hitachigst.com (Asia Pacific)
> support_uk@hitachigst.com (EMEA and UK)
Technical Support Phone Numbers:
> 1 888 426-5214 (N. America)
> 65 6840 9595 (Asia Pacific)
> 44 20 7133 0032 (EMEA and UK)
> 49 6929 993601 (Germany)
How t o R ead t h e Tr a vel s tar M o del N u m ber
HTS421212H9AT00 = 120GB/8MB
H = Hitachi
T = Travelstar
S = Standard
42 = 4200 RPM
12 = Full capacity - 120GB
12 = Capacity this model 12 =120GB (10 = 100GB,
80 = 80GB, 60 = 60GB)
H = Generation code
9 = 9.5mm z - height
AT = ATA interface
0 = Reserved
0 = Reserved
© 2005 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
5600 Cottle Road
San Jose, CA 95193
Produced in the United States 6/05. All rights reserved.
Travelstar®, Adaptive Battery Life Extender™ (ABLE), TrueTrack
Technology™, Link Power Management™, High Voltage Efficiency
Regulator Technology™ (HiVERT), and Smooth Stream™ are
trademarks of Hitachi Global Storage Technologies.
References in this publications to Hitachi Global Storage
Technologies products, programs, or services, do not imply that
Hitachi Global Storage Technologies intends to make these
available in all countries in which it operates.
Product information is provided for information purposes only,
and does not constitute a warranty. Information is true as of the
date of publication and is subject to change. Actual results may
vary. This publication is for general guidance only. Photographs
may show design models.