![](/images/backgrounds/289729/hp-pavilion-6738-desktop-pc-us-product-manual-15088113x1.png)
6U Series 5 Family Product Manual, Rev. B
1.2 Physical organization
Drive Model | Read/Write heads (GMR) | Number of discs |
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ST340823A | 4 | 2 |
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ST330621A | 3 | 2 |
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ST320413A | 2 | 1 |
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ST315311A | 2 | 1 |
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ST310211A | 1 | 1 |
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1.3 Recording and interface technology
Interface | ATA |
Recording method | 16/17 EPRML |
Recording density BPI (bits/inch) | 477,800 |
Track density TPI (tracks/inch) | 31,100 |
Areal density (Mbits/inch2 max) | 14,860 |
Spindle speed (RPM) (± 0.2%) | 5,400 |
Internal |
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(Mbits/sec max) | 376 |
I/O | 16.6 (PIO mode 4) |
(Mbytes/sec max) | 100 (Ultra DMA mode 5) |
Interleave | 1:1 |
Cache buffer (Mbytes) | 1 |
1.4 Physical characteristics
Drive Specification |
| ST340823A, ST330621A, |
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| ST320413A, ST315311A, |
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| ST310211A |
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Maximum height | (mm) | 26.1 |
| (inches) | 1.028 |
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Maximum width | (mm) | 101.8 |
| (inches) | 4.020 |
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Maximum length | (mm) | 147.0 |
| (inches) | 5.78 |
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Typical weight | (grams) | 590 |
| (pounds) | 1.3 |
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