| Chipset | AMD M880G Chipset |
| Processors | |
| Memory | Standard : DDR3 PC3-10600 SDRAM (1333 MHz)1 Two SODIMM slots supporting dual-channel memory 2048MB SODIMMs
Maximum : Upgradeable to 8192MB with 4096MB SODIMMs in slots 1 and 2
Dual-channel : Maximized dual-channel performance requires SODIMMs of the same size and speed in both memory slots |
| Graphics | |
| Display | Internal
For 6455b Notebook PC :
14-inch diagonal LED-backlit HD anti-glare (1366 x 768 resolution) - External : Up to 32-bit per pixel color depth
DisplayPort supports resolutions up to 2560 x 1600, 30-bit color depth at 60 Hz, and full HD (1920 x 1080) monitors, 24-bit color depth at 120 Hz VGA port supports resolutions up to 2048 x 1536 at 75 Hz, and lower resolutions at up to 100 Hz DVI-D (single link) video signal available through DVI port in optional HP Docking Station (sold separately) supports resolutions up to 1600 x 1200 at both full and reduced blanking, and 1920 x 1200 at reduced blanking
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| 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, 12 function keys, and 19.05 x 19.05 mm key pitch (center-to-center spacing). U.S. and International key layouts are available. Other features include hotkeys for instant access to power conservation and brightness. The HP ProBook 6555b includes a separate numeric keypad |
| Pointing device | Touchpad with scroll zone, two pick buttons Optional pointstick with two additional pointstick buttons
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| Expansion card slots | ExpressCard/54 slot : Supports ExpressCard/54 and ExpressCard/34
Optional integrated : Compatible with ISO 7816 compliant Smart Cards
Smart card reader (replaces ExpressCard/54 slot): PC/SC interface support
Media card reader : Supports SD (Secure Digital), HC-SD (High Capacity Secure Digital), MMC (MultiMedia Card), HS-MMC (MultiMedia Card Plus), Sony Memory Stick, Sony Memory Stick Pro, Memory Stick Duo2 , xD-Picture card |
| Storage | Hard drives : 320GB 7200 rpm SMART SATA II
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| Power supply | |
