Rotational Speed: 5400 RPM | Capacities: Up To 40 GB | ||
Interface: Ultra ATA/100 | Average Read Seek Time: 12.8 ms | ||
Buffer Size: 2 MB | |||
Data Lifeguard: WD's exclusive hardware, software and services designed to protect your data. |
Rotational Speed | 5,400 RPM (nominal) |
Buffer Size | 2 MB |
Read Seek Time (Average) | 12.1 ms |
Write Seek Time (Average) | 13.0 ms (average) |
Track-To-Track Seek Time | 2.0 ms (average) |
Full Stroke Seek | 25.0 ms (average) |
Average Latency | 5.0 ms (nominal) |
Buffer To Disk | 320.0 Mbits/s (Max) |
Mode 5 Ultra ATA | 100.0 MB/s |
Mode 4 Ultra ATA | 66.6 MB/s |
Mode 2 Ultra ATA | 33.3 MB/s |
Mode 4 PIO | 16.6 MB/s |
Mode 2 multi-word DMA | 16.6 MB/s |
Formatted Capacity | 20,020 MB |
Cylinders | 16,383 |
Number of Heads (Logical) | 16 |
Number of Heads (Physical) | 2 |
Sectors Per Track | 63 |
Interface | EIDE |
Actuator Type | Rotary Voice Coil |
Number of Platters | 1 |
Bytes Per Sector | 512 |
User Sectors Per Drive | 39,102,336 |
Servo Type | Embedded |
Height (English) | 1.028 Inches (Max) |
Length (English) | 5.787 Inches (Max) |
Width (English) | 4.00 Inches (+/- 0.010 inch) |
Weight (English) | 1.32 Pounds (+/- 0.14 pounds) |
Operating Shock (Read) | 65G, 2ms |
Non-operating Shock | 300G, 2 ms |
Idle Mode | 32 dBA (average) |
Seek Mode 0 | 36 dBA (average) |
Seek Mode 3 | 36 dBA (average) |