WD400 Disco ide 40 gb En buen estado
| Physical Specifications |
| Formatted Capacity 1 | 40,021 MB |
| Interface | 40-pin EIDE (Fast ATA-2?? EIDE is a Western Digitial proprietary specification.) |
| Actuator Type | Rotary Voice Coil |
| Number of Disks | 2 |
| Data Surfaces | 4 |
| Number of Heads | 4 |
| Bytes Per Sector | 512 |
| User Sectors Per Drive | 78,165,360 |
| Servo Type | Embedded |
| Recording Method EPR4 | Rate 16/17 PRML |
| ECC | Reed Solomon |
| Head Park 2 | Automatic |
PRML - Partial Response Maximum Likelihood
EIDE - Enhanced Integrated Drive Electronics
1 Western Digital defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes
2 Turning the system power off causes the WD Caviar® to perform an automatic head park operation.
| Performance Specifications |
Average Seek
- Read
- Write | 8.9 ms (typical) 18 ms (maximum)
10.9 ms (typical) 20 ms (maximum) |
| Track-to-Track Seek | 2.0 ms (typical) 5 ms (maximum) |
| Full Stroke Seek | 21 ms (typical) 28 ms (maximum) |
| Index Pulse Period | 8.3 ms (nominal) |
| Average Latency | 4.2 ms (nominal) |
| Rotational Speed | 7200 RPM (nominal) |
| Controller Overhead | 0.3 ms average |
Data Transfer Rate (maximum)
- Buffer to Host
- Buffer to Disk |
100 MB/s (Mode 5 Ultra ATA)[ATA/ATAPI-6]
66.6 MB/s (Mode 4 Ultra ATA)
33.3 MB/s (Mode 2 Ultra ATA)
16.6 MB/s (Mode 4 PIO)
16.6 MB/s (Mode 2 multi-word DMA)
244 Mbits/s minimum
400 Mbits/s maximum |
| Interleave | 1:1 |
| Buffer Size | 2 MB |
| Error Rate - Unrecoverable | <1 in 1014 bits read |
Spindle Start Time
- From Power-on to Drive Ready 1
- From Power-on to Rotational Speed 2 | 5.5 s average, 9s maximum
4.5 s average, 7s maximum |
| Contact Start/Stop Cycles (CSS) | 50,000 minimum |
1 Defined as the time from power-on to the setting of the Drive Ready and Seek Complete including calibration.
2 Defined as the time from power-on to when the full spindle rotational speed is reached.
| Physical Dimensions |
| Height | English: | 1.028 inches max |
| | Metric: | 26.1 mm max |
| Length | English: | 5.787 inches max |
| | Metric: | 147.0 mm max |
| Width | English: | 4.00 inches ±0.010 inch |
| | Metric: | 101.6 mm ±0.25 mm |
| Weight | English: | 1.4 pounds ±0.14 pounds |
| | Metric: | 0.62 kg ±0.062 kg |
| Electrical Specifications |
| Current Requirements and Power Dissipation |
| Operating Mode | RMS Current | Power, Typical 1 |
| | 12 VDC | 5 VDC | |
| Spinup | 1.8 A | 560 mA | 18.4 W |
| Read/Write/Idle | 350 mA | 630 mA | 7.5 W |
| Seek | 870 mA | 660 mA | 13.7 W |
| Power Management Commands |
| Operating Mode | RMS Current 1 | Power, Typical 1 |
| | 12 VDC | 5 VDC | |
| Idle (E1H) | 340 mA | 610 mA | 7.1 W |
| Standby (E0H) | 25 mA | 190 mA | 1.3 W |
| Sleep (E6H) | 25 mA | 80 mA | 0.7 W |
| Input Voltage Requirements |
| +5.0V (±5%) and 12.0V (±10%) |
| Ripple |
| | +12 VDC | +5 VDC |
Maximum
Frequency | 200 mV (double amplitude)
0-30 MHz | 100 mV (double amplitude)
0-30 MHz |
Envio a capital 30 pesos .
Tambien se puede retirar barrio barracas de 16 a 21 hs y fines de semana previa coordinacion.
Envio a provincia previo deposito bancario por microa cargo del comprador + 20 pesos en gastos de flete y embalaje.
Recuerde que su oferta es compromiso de compra.
De no retirar el producto dentro de los 10 dias subsiguientes ala compra se califica negativo.
Realica todas la preguntas necesarias al vendedor .
