Seagate Barracuda 7200.8 400GB 7.2K SATA Hard Drive ST3400832AS
Capacity: 400GB
Spindle Speed: 7,200RPM
Interface Type: SATA
Disk Size: 3.5″x1.0″ (LFF Hard Drive)
Sustained Throughput (MBps): 65
Average Seek Time (read/write ms): 8 / 9
Electrical Interface Speed: SATA 150 – 1.50Gbps
On-Board Cache: 8MB
Barracuda 7200.8 hard drives from Seagate provide a wide range of capacities, fast performance and superb reliability, all at an excellent value. They are top storage choices for any ATA-based applications, including mainstream and high-performance PCs, low-cost servers and RAIDs, PC gaming systems and media PCs. Seagate Barracuda 7200 hard drives also feature the latest in SATA interface innovations and are backed up by the Seagate five-year warranty.
- 7200 RPM with varying cache sizes matches storage performance to system needs
- 40GB up to 750GB to meet the needs of all PC and cost-sensitive server needs
- Cache sizes from 2 to 16 Mbytes for maximum performance
- Serial ATA (SATA) with native command queuing (NCQ) for enhanced performance and easy system integration
- Whisper-quiet acoustics
- Industry-leading five-year warranty
Drive specification
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ST3400832AS
|
|
Formatted Gbytes (512 bytes/sector)* |
400 |
|
Guaranteed sectors |
781,422,768 |
|
Bytes per sector |
512 |
|
Default sectors per track |
63 |
|
Default read/write heads |
16 |
|
Default cylinders |
16,383 |
|
Recording density in BPI (bits/inch max) |
763,000 |
|
Track density TPI (tracks/inch avg) |
120,000 |
|
Areal density (Mbits/inch 2 avg) |
91,560 |
|
Spindle speed (RPM) |
7,200 |
|
Internal data transfer rate (Mbytes/sec max) |
95 |
|
Sustained transfer rate OD (Mbytes/sec) |
65 |
|
I/O data transfer rate (Mbytes/sec max) |
150 |
|
ATA data-transfer modes supported |
PIO modes 0–4Multiword DMA modes 0–2Ultra DMA modes 0–6 |
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SATA data-transfer modes supported |
1.5 Gbits/sec |
|
Cache buffer |
8 Mbytes |
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Height (max) |
26.11 mm (1.028 inches) |
|
Width (max) |
101.85 mm (4.010 inches) |
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Length (max) |
146.99 mm (5.787 inches) |
|
Weight (max) grams / lb. |
635 / 1.39 |
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Average latency (msec) |
4.16 |
|
Power-on to ready (typical) |
10 sec |
|
Standby to ready (typical) |
10 sec |
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Track-to-track seek time (msec typical) |
0.8 (read), 1.0 (write) |
|
Average seek, read (msec typical) |
8.0 |
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Average seek, write (msec typical) |
9.0 |
|
Startup current (typical) 12V (peak) |
2.8 amps |
|
Seek power (typical) watts |
9.9 |
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Operating power (typical) watts |
9.2 |
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Idle mode (typical) watts |
7.2 |
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Standby mode (typical) watts |
1.2 |
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Sleep mode |
1.2 |
|
Voltage tolerance (including noise) |
5V ± 5% 12V ± 10% |
|
Ambient temperature |
0° to 60°C (op.) –40° to 70°C (nonop.) |
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