HP ProBook 4520s Notebook

Operating system	Genuine Windows® 7 Professional 32 Genuine Windows® 7 Professional 64 Genuine Windows® 7 Home Premium 32 Genuine Windows® 7 Home Premium 64 Genuine Windows® 7 Home Basic 32 Genuine Windows Vista® Business 32 Genuine Windows Vista® Home Basic 32 SUSE Linux Enterprise 11 Red Flag Linux (PRC only) FreeDOS Red Flag Linux FreeDOS System may require upgraded and/or separately purchased hardware and/or a DVD drive to install the Windows 7 software and take full advantage of Windows 7 functionality; Certain Windows Vista product features require advanced or additional hardware
Processor	Intel® Core™ i7-620M Processor (2.66 GHz, 4 MB L3 cache) Intel® Core™ i5-540M Processor (2.53 GHz, 3 MB L3 cache) Intel® Core™ i5-520M Processor (2.40 GHz, 3 MB L3 cache) Intel® Core™ i5-430M Processor (2.26 GHz, 3 MB L3 cache) Intel® Core™ i3-350M Processor (2.26 GHz, 3 MB L3 cache) Intel® Core™ i3-330M Processor (2.13 GHz, 3 MB L3 cache)
Chipset	Mobile Intel® HM57 Express
Environmental	BFR/PVC-free

Dimensions and Weight
Weight	Starting at 2.39 kg
Dimensions (W x D x H)	37.18 x 24.96 x 2.77 cm Height varies depending upon where on the notebook the measurement is made

Memory
Memory, maximum	Up to: 8 GB 1066 MHz DDR3 SDRAM Up to: 8 GB 1066 MHz DDR3 SDRAM Maximized dual-channel performance requires SODIMMs of the same size and speed in both memory slots
Memory slots	2 SODIMM

Storage
Internal drives	SATA II (7200 rpm) From: 250 GB Up to: 500 GB SATA II (5400 rpm) From: 640 GB Up to: 750 GB
Optical drive	DVD+/-RW SuperMulti DL LightScribe Blu-ray ROM DVD+/-RW SuperMulti DL LightScribe DVD-ROM

Graphics
Display	15.6" diagonal LED-backlit HD anti-glare (1366 x 768) 15.6" diagonal LED-backlit HD BrightView (1366 x 768)
Graphics	Intel® HD Graphics ATI Mobility Radeon™ HD 4350 with 512 MB dedicated video memory Microsoft DirectX 10.1 (discrete), 10 (integrated) capable

Expansion features
Ports	3 USB 2.0 1 external VGA monitor 1 HDMI 1 stereo microphone in 1 stereo headphone/line-out 1 AC power 1 RJ-11 (optional) 1 RJ-45 1 eSATA/USB 2.0 Combo
Slots	1 Express Card/34 1 6-in-1 Media Card Reader Inserting a Memory Stick Duo Card directly into your notebook could damage the memory card and/or notebook
Audio	HD audio (HP Premier Sound); Integrated stereo speakers; Integrated digital microphone; Stereo headphone/line out; Stereo microphone/line in
Integrated camera	2 MP webcam (select models)
Keyboard	Full-sized spill-resistant keyboard with better spaced keys and full separate numeric keypad
Pointing device	ClickPad with gestures support Two fingers scroll, zoom, pinch and pivot rotate

Communications
Network interface	Realtek Ethernet (10/100/1000 NIC)
Wireless	Intel Centrino® Advanced-N 6200 (2x2) 802.11a/b/g/n Atheros 9285G 802.11b/g/n WiFi Adapter Broadcom 4322AGN 802.11a/b/g/n WiFi Adapter Broadcom 4312G 802.11b/g WiFi Adapter HP Integrated Module with Bluetooth® 2.1 Wireless Technology HP Mobile Broadband (powered by Gobi™) with GPS In countries where 802.11n is not allowed, this capability is not enabled (Intel 802.11a/b/g only) HP un2420 EV-DO/HSPA Mobile Broadband Module (available for models with Intel HD Graphics only)

Power and operating requirements
Energy efficiency	ENERGY STAR® qualified configurations available
Power	External 90-watt Smart AC Adapter (discrete graphics), External 65-watt Smart AC Adapter (integrated graphics) Power cord (1.8 meters with AC adapter 3.66 meters)
Battery type	9-cell (93 WHr) Lithium-Ion 6-cell (47 WHr) Lithium-Ion
Battery life	Up to 5h (Primary 6-cell Battery) or 10h (Primary 9-cell Battery) Battery life will vary depending on the product model, configuration, loaded applications, features, use, wireless functionality and power management settings
Operating temperature range	5 to 35° C
Operating humidity range	10 to 90% RH
Non-operating humidity	5 to 95% RH

Security management
Security	HP ProtectTools Security Manager Face Recognition for HP ProtectTools One Step Login Enhanced Pre-Boot Security HP SpareKey HP Disk Sanitizer Setup Password Kensington Lock Slot Support for Computrace LoJack Pro for HP ProtectTools optional HP Fingerprint Sensor optional HP Privacy Filter