Filter
Top Products
Visit us at: www.toshibastorage.com
SATA 240/120/80GB
1.8-Inch Hard Disk Drives
Specifications
MK2431GAH
(HDD1905)
MK1231GAS
(HDD1813)
MK8031GAS
(HDD1814)
Series Overview
Interface Parallel ATA (PATA) Parallel ATA (PATA) Parallel ATA (PATA)
Capacity 240GB
1
120GB
1
80GB
1
Number of Platters 2 1 1
Number of Data Heads 4 2 2
RoHS Compatible
2
Y Y Y
Performance
Max Transfer Rate to Host 100MB/s 100MB/s 100MB/s
Media Transfer Rate (max) 488 Mbits/sec 488 Mbits/sec 324 Mbits/sec
Rotational Speed 4200rpm 4200rpm 4200rpm
Average Latency 7.14 7.14 7.14
Buffer
4
8MB 8MB 8MB
Track-to-track Seek Time 3ms 3ms 3ms
Average Seek Time 15ms 15ms 15ms
Load/Unload Cycles 600,000 600,000 600,000
Power
Requirements
Voltage 3.3V ±5% 3.3V ±5% 3.3V ±5%
Energy Consumption Efciency
5
0.0013W/GB 0.0025W/GB 0.0038W/GB
Spin-up 1.8watts 1.8watts 1.8watts
Seeking 0.9watts 0.9watts 0.9watts
Reading 0.8watts 0.8watts 0.8watts
Writing 0.8watts 0.8watts 0.8watts
Active Idle 0.4watts 0.4watts 0.4watts
Low Power Idle 0.3watts 0.3watts 0.3watts
Standby 0.1watts 0.1watts 0.1watts
Sleep 0.07watts 0.07watts 0.07watts
Dimensions/Weight
Height 0.31” (8mm) 0.2” (5mm) 0.2” (5mm)
Width 2.13” (54mm) 2.13” (54mm) 2.13” (54mm)
Depth 2.79” (71.0mm) 3.09” (78.5mm) 3.09” (78.5mm)
Weight 2.08 oz (59g) 1.69oz (48g) 1.69oz (48g)
Environmental
Operating Temperature 41 - 140°F (5 to 60°) 41 - 140°F (5 to 60°) 41 - 140°F (5 to 60°)
Non-Operating Temperature -4 - 148°F (-20 to 65°) -4 - 148°F (-20 to 65°) -4 - 148°F (-20 to 65°)
Operating Humidity 8 - 90% R.H. 8 - 90% R.H. 8 - 90% R.H.
Non-Operating Humidity 8 - 90% R.H. 8 - 90% R.H. 8 - 90% R.H.
Operating Vibration 2.0G (15-500 Hz) 2.0G (15-500 Hz) 2.0G (15-500 Hz)
Non-Operating Vibration 5.0G (15-500 Hz) 5.0G (15-500 Hz) 5.0G (15-500 Hz)
Operating Shock 600G/2.0ms 600G/2.0ms 600G/2.0ms
Non-Operating Shock 1,500G/1.0ms 1,500G/1.0ms 1,500G/1.0ms
Acoustics
Idle Mode (Average) 1.4Bels 1.4Bels 1.4Bels
Seek Mode (Average) 2.0Bels 2.0Bels 2.0Bels
480120-A0
1. One Gigabyte (1 GB) means 10
9
= 1,000,000,000 bytes using powers of 10. A computer
operating system, however, reports storage capacity using powers of 2 for the denition
of 1 GB = 2
30
= 1,073,741,824 bytes, and therefore shows less storage capacity. Avail-
able storage capacity will also be less if the computer includes one or more pre-installed
operating systems, pre-installed software applications, or media content. Actual format-
ted capacity may vary.
2. RoHS Compatible: This product is compatible with European Union Directive 2002/95/
EC. Restriction of the use of certain hazardous substances in electrical and electronic
equipment (RoHS), which restricts use of lead, cadmium, mercury, hexavalent chro-
mium, PBB, and PBDE.
3. Free of brominated ame retardants (BFR) and polyvinyl chloride (PVC);
hazardous halogens, antimony trioxide and red phosphorous also eliminated from all
components in the hard drive.
4. Buffer space available to the user.
5. Energy consumption efciency is calculated based on power consumption divided by
formatted capacity, as dened by Japanese law.
Subject to Change: While Toshiba has made every effort at the time of publication to ensure
the accuracy of the information provided herein, product specifications, configurations,
prices, system/component/options availability are all subject to change without notice.
© 2009 Toshiba America Information Systems. All rights reserved.