HP 4320s Keyboard, Pointing device, Expansion card slots ExpressCard/34 slot, Media Card Reader

QuickSpecs

HP ProBook 4320s Notebook PC HP ProBook 4420s Notebook PC

Standard Features (availability may vary by country)

Keyboard	The HP spill-resistant keyboard is designed using a thin layer of Mylar film under the keyboard and a
	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 101/102-key compatible keyboard features a full-
	pitch key layout with desktop keyboard features, such as the isolated inverted-T cursor control keys,
	editing keys, both left and right control and alt keys, 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 (center-to-center spacing).
Pointing device	ClickPad with gestures support:
	Two-finger scroll, zoom, pinch and pivot rotate
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,
		Memory Stick Pro, Memory Stick Duo*, xD-Picture card
	* 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.
Storage	Internal Storage Device	250/320/500 GB 7200 rpm SMART SATA II Hard Drive
		640 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 three-axis digital motion
		detection with intelligent sensitivity to help protect the hard drive during
		normal use from shock and vibration. The digital accelerometer temporarily
		halts all data transfer and parks the hard drive when abrupt motion is
		detected.
	Fixed optical drives	Blu-ray ROM DVD+/-RW SuperMulti DL LightScribe Drive*
		DVD+/-RW SuperMulti DL LightScribe Drive

* Support for the Blu-ray DVD drive on configurations with integrated graphics requires Windows7 or Windows Vista; configurations with discrete graphics support it with any offered Windows operating system.

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