| | |
|
| |
| | |
|
|
Western Digital Scorpio 2.5" 320GB HD, 7200RPM
|
|
Item Number: HDD
|
| Performance Specifications
|
|
|
Rotational Speed
|
7,200 RPM (nominal)
|
|
|
Buffer Size
|
16 MB
|
|
|
Average Latency
|
4.20 ms (nominal)
|
|
|
| Seek Times
|
|
|
Read Seek Time
|
12.0 ms
|
|
|
Track-To-Track Seek Time
|
2.0 ms (average)
|
|
|
| Transfer Rates
|
|
|
Buffer To Host (Serial ATA)
|
3 Gb/s (Max)
|
|
|
| Physical Specifications
|
|
|
|
Formatted Capacity
|
320,072 MB
|
|
|
Capacity
|
320 GB
|
|
|
Interface
|
SATA 3 Gb/s
|
|
|
| Physical Dimensions
|
|
| English
|
|
|
Height
|
0.374 Inches
|
|
|
Length
|
3.94 Inches
|
|
|
Width
|
2.75 Inches
|
|
|
Weight
|
0.22 Pounds
|
|
|
| Metric
|
|
|
Height
|
9.5 mm
|
|
|
Length
|
100 mm
|
|
|
Width
|
69.85 mm
|
|
|
Weight
|
99 g
|
|
|
| Environmental Specifications
|
|
| Shock
|
|
|
Operating Shock (Read)
|
350G, 2ms
|
|
|
Non-operating Shock
|
1000G, 2 ms
|
|
|
| Acoustics
|
|
|
Idle Mode
|
22 dBA (average)
|
|
|
Seek Mode 0
|
25 dBA (average)
|
|
|
| Temperature (English)
|
|
|
Operating
|
32° F to 140° F
|
|
|
Non-operating
|
-40° F to 158° F
|
|
|
| Temperature (Metric)
|
|
|
Operating
|
-0° C to 60° C
|
|
|
Non-operating
|
-40° C to 70° C
|
|
|
| Humidity
|
|
|
Operating
|
8% to 95% Non-condensing
|
|
|
Non-operating
|
5-95% RH non-condensing
|
|
|
| Altitude (English)
|
|
|
Operating
|
-1,000 feet to 10,000 feet
|
|
|
Non-operating
|
-1,000 feet to 40,000 feet
|
|
|
| Altitude (Metric)
|
|
|
Operating
|
-305M to 3,050M
|
|
|
Non-operating
|
-305M to 12,200M
|
|
|
| Vibration
|
|
|
Operating
|
0.00459 g²/Hz (10 to 500 Hz)
|
|
|
Non-operating
|
0.05102 g²/Hz (10 to 500 Hz)
|
|
|
| Electrical Specifications
|
|
| Current Requirements
|
|
|
5 VDC
|
|
|
Read/Write
|
500 mA
|
|
|
Idle
|
400 mA
|
|
|
Standby
|
50 mA
|
|
|
Sleep
|
30 mA
|
|
|
|
|
Power Dissipation
|
|
|
Read/Write
|
2.50 Watts
|
|
|
Idle
|
0.85 Watts
|
|
|
Standby
|
0.25 Watts
|
|
|
Sleep
|
0.15 Watts
|
|
|
|
|