QuickSpecs
HP ProBook 4520s Notebook PC HP ProBook 4720s Notebook PC
Standard Features (availability may vary by country)
Keyboard | The HP | ||
| drain system that funnels fluid through a hole in the bottom of the notebook. This minimizes the risk of | ||
| damage to sensitive components underneath. The | ||
| key layout with desktop keyboard features, such as the isolated | ||
| keys, both left and right control and alt keys, full separate numeric keypad, and 12 function keys. US and | ||
| International key layouts are available. Other features include hotkeys for instant access to power | ||
| conservation and brightness, and 19.05 x 19.05 mm key pitch | ||
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Pointing device | ClickPad with gestures support: | ||
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Expansion card slots | ExpressCard/34 slot | Supports ExpressCard/34 (34 mm x 75 mm x 5 mm) card sizes | |
| Media Card Reader | Supports SD (Secure Digital), MMC (MultiMedia Card), Memory Stick, | |
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| Memory Stick Pro, Memory Stick Duo*, | |
| * Memory Stick Duo Adapters are required and sold separately. Inserting a Memory Stick Duo Card | ||
| directly into your notebook could damage the memory card and/or notebook. | ||
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Storage | Internal Storage Device250/320/500 GB 7200 rpm SMART SATA II Hard Drive | ||
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| 750 GB 5400 rpm SMART SATA II Hard Drive | |
| NOTE: Up to 15 GB is reserved for the system recovery software. | ||
| HP 3D DriveGuard | The hard drive is mounted directly to the notebook frame, reducing the | |
| (Windows models only) | transmission of shock to the hard drive. Uses | |
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| detection with intelligent sensitivity to help protect the hard drive during | |
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| normal use from shock and vibration. The digital accelerometer temporarily | |
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| halts all data transfer and parks the hard drive when abrupt motion is | |
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| detected. | |
| Fixed optical drives | ||
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* Support for the
DA - 13569 Worldwide QuickSpecs — Version 2 — 3.12.2010 | Page 7 |