Western Digital 2.5 Inch EIDE WD Scorpio 40GB 5400RPM 50pk bulk WD400UE-50PK プリント
製品コード
WD400UE-50PK
For service and literature:
support.wdc.com
www.westerndigital.com
www.westerndigital.com
Western Digital is a registered trademark and
WD, the WD logo, WhisperDrive, SoftSeek,
ShockGuard,DuraStep Ramp, and FIT Lab are
trademarks of Western Digital Technologies,
Inc. Other marks may be mentioned herein
that belong to other companies. Product
specifications subject to change without
notice.
WD, the WD logo, WhisperDrive, SoftSeek,
ShockGuard,DuraStep Ramp, and FIT Lab are
trademarks of Western Digital Technologies,
Inc. Other marks may be mentioned herein
that belong to other companies. Product
specifications subject to change without
notice.
© 2004 Western Digital Technologies, Inc.
All rights reserved.
All rights reserved.
Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630 U.S.A.
20511 Lake Forest Drive
Lake Forest, California 92630 U.S.A.
2879-001121-A02 10/04
800.
ASK
.4
WDC
North America
949.672.7199
Spanish
+800.6008.6008
Asia Pacific
+31.20.4467651
EMEA
Power Requirements (average)
Environmental Specifications
4
Shock
Vibration
Operating Temperature & Humidity
Non-Operating Temperature & Humidity
Acoustics (average)
Mode
5V (±5%)
Power
Spinup
900 mA
4.5W
Read/Write
3
500 mA
2.5W
Idle
- Performance (mode 1) 400 mA
2.0W
- Active (mode 2) 260 mA
1.3W
- Low Power (mode 3) 170 mA
0.85W
Standby
45 mA
0.225W
Sleep
38 mA
0.190W
Operating (2 ms)
250G
Non-operating (1 ms)
900G
Note: Half-sine wave, measured without shock isolation and
without non-recoverable errors.
without non-recoverable errors.
Operating
- Random
- Random
0.008 g
2
/Hz (5 to 300 Hz)
- Sinusoidal
5-300 Hz, 1.0g (0 to peak), 0.5 octaves/min.
Non-operating
- Random
- Random
5-500 Hz, 0.05 g
2
/Hz (0 to peak)
- Sinusoidal
5-500 Hz, 2.0g (0 to peak), 0.5 octaves/min.
Temperature
5° C to 60° C
Humidity
8-90% RH non-condensing
Thermal gradient
20° C/hour max
Temperature
-40° C to 65° C
Humidity
5-95% RH non-condensing
Thermal gradient
30° C/hour
1-platter 2-platter
Idle mode
5
17 dBA
20 dBA
Seek mode
5
19 dBA
21 dBA
1
Western Digital defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes. Some operating systems use the
binary numbering system which results in a lower reported capacity.
2
Maximum burst rate running the specified PIO, DMA, or Ultra ATA transfer mode.
3
20% duty cycle.
4
No non-recoverable errors during operating tests or after non-operating tests.
5
Sound power level.
Performance Specifications
Data Transfer Rate
Average read seek
12.0 ms (average)
Physical Dimensions
Buffer to host
100 MB/s (Mode 5 Ultra ATA)
2
66.6 MB/s (Mode 4 Ultra ATA)
2
33.3 MB/s (Mode 2 Ultra ATA)
2
16.6 MB/s (Mode 2 DMA)
2
16.6 MB/s (Mode 4 PIO)
2
Max buffer to disk
421 Mbits/s max
Track-to-track seek
2.0 ms (average)
Average latency
5.5 ms
Rotational speed
5400 RPM
Read cache
Adaptive
Write cache
Yes
Buffer
2 MB (WD400UE, WD600UE, WD800UE)
8 MB (WD400VE, WD600VE, WD800VE)
8 MB (WD400VE, WD600VE, WD800VE)
Drive ready time
4.5 sec average
Load/unload cycles at
ambient condition
600,000
Master/Slave support
Yes
Error rate
(non-recoverable)
(non-recoverable)
<1 in 10
14
bits read
Height
0.374 in. (9.5 mm) ± 0.008 in.
Length
3.94 in. (100.2 mm) ± 0.010 in.
Width
2.75 in. (69.85 mm) ± 0.25 in.
Weight (typical)
1-platter
1-platter
0.25 lb. (0.112 kg)
Weight (typical)
2-platter
2-platter
0.26 lb. (0.117 kg)
Physical Specifications
40 GB
60 GB
80 GB
Model number
2 MB buffer
2 MB buffer
WD400UE
WD600UE
WD800UE
8 MB buffer
WD400VE
WD600VE
WD800VE
Formatted capacity
1
40,020 MB 60,022 MB
80,026 MB
User sectors per drive
78,140,160 117,210,240 156,301,488
Interface
44-pin EIDE 44-pin EIDE 44-pin EIDE
Form factor
2.5-inch
2.5-inch
2.5-inch
Bytes per sector (STD)
512
512
512