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HP ProBook 6455b/6555b Notebook PC - Specifications

Physical specifications

Dimensions (H x W x D)
For 6455b Notebook PC:
  • 33.8 (at front) x 339 x 236.2 mm (1.33 x 13.35 x 9.3 in)

For 6555b Notebook PC:
  • 34.8 (at front) x 371.4 x 248 mm (1.37 x 14.62 x 9.76 in)

For 6455b Notebook PC:
  • Starting at 2.26 kg (5.0 lb) with weight saver (no optical drive)

  • Starting at 2.39 kg (5.31 lb) with DVD-ROM drive

For 6555b Notebook PC:
  • Starting at 2.51 kg (5.5 lb) with weight saver (no optical drive)

  • Starting at 2.64 kg (5.81 lb) with DVD-ROM drive

Standard features:
  • HP ProtectTools Security Manager

  • Enhanced Pre-Boot Security

  • HP SpareKey

  • One-Step Logon

  • Setup Password

  • TPM 1.2 Embedded Security Chip1

  • TPM Enhanced DriveLock1

  • HP Disk Sanitizer

  • Lock slot

  • Support for Computrace2 LoJack Pro for HP ProtectTools

Optional features:
  • Smart Card Reader: (replaces ExpressCard/54 slot) Compatible with ISO 7816 compliant Smart Cards PC/SC interface support

  • HP Fingerprint Sensor: Enhanced sensor scans the fingerprint to uniquely identify and authenticate a person

  • HP Privacy Filter: Narrows viewing area so that screen data is visible only to persons directly in front of the monitor.

  • Computrace2 LoJack Pro Premium for HP ProtectTools with GPS Tracking: Subscription based security solution providing the ability to track, initiate physical recovery, conduct asset management, and perform remote data delete by utilizing GPS technology. GPS functionality requires HP un2420 EV-DO/HSPA Mobile Broadband Module.

NOTE: 1: TPM module disabled where use is restricted by law; for example, Russia and China.

2: The Computrace agent is shipped turned off, and must be activated by customers when they purchase a subscription with terms ranging from one to five years.

Click here for more information on HP security solutions refer to HP webpage .



HP un2420 EV-DO/HSPA Mobile Broadband Module
Integrated mobile broadband module with Gobi global mobile Internet technology that provides connectivity to both CDMA (EVDO) and UMTS (HSPA) networks. It also provides GPS functionality for various mapping applications and security applications such as Computrace LoJack Pro Premium for HP ProtectTools.
All 802.11 integrated wireless LAN options
  • Wi-Fi Certified1
  • Cisco Compatible Extensions support
  • Wired Equivalent Privacy (WEP) support up to 128-bit keys
  • Wi-Fi Protected Access (WPA) and WPA2 support
  • 802.1x authentication support, including EAP-TLS, EAP-TTLS, PEAP-GTC, PEAP-MSCHAPv2, and LEAP
  • Advanced Encryption Standard (AES) support
  • Dual antennas integrated in the display enclosure
Broadcom 4322AGN 802.11a/b/g/n WiFi Adapter
Integrated support for 802.11 a, b, g and n up to 300 Mb/s data rate
Broadcom 4313GN 802.11b/g/n WiFi Adapter
Integrated support for 802.11 b, g and n up to 72 Mb/s data rate
Broadcom 4312G 802.11b/g WiFi Adapter (Russia/Ukraine only)
Integrated support for 802.11 b and g and up to 54 Mb/s data rate
HP Integrated Module with Bluetooth 2.1+EDR Wireless Technology
Bluetooth Specification v2.1+EDR compliant Works with a wide range of Bluetooth devices
Integrated Marvell Gigabit Ethernet PCI Controller (10/100/1000 NIC)2
56 K V.92 modem3
NOTE: 1: In countries where 802.11n is not allowed, this capability is not enabled.

2: The term "10/100/1000" or "Gigabit" Ethernet indicates compliance with IEEE standard 802.3ab for Gigabit Ethernet, and does not connote actual operating speed of 1 Gb/s. For high-speed transmission, connection to a Gigabit Ethernet server and network infrastructure is required.

3: Designed for downloads from 56 K modem compliant sources. Maximum achievable download transmission rates currently do not reach 56 KB/s, and will vary with line conditions. Modem availability is subject to country regulatory approval.


Electrical specifications

Stand-alone power requirements (ac power)
Nominal operating voltage
18.5 V
Average operating power
Max operating power
< 90 W
Power cable length
1.8 m (6 ft) power cord


Environmental specifications

Operating temperature
  • 0° to 35°C (32° to 95°F) (not writing optical)
  • 5° to 35°C (41° to 95°F) (writing optical)
-20° to 60°C (-4° to 140°F)
Relative humidity
10% to 90%, non-condensing
5% to 95%, 38.7°C (101.6°F) maximum wet bulb temperature
-15.24 to 3,048 m (-50 to 10,000 ft)
-15.24 to 12,192 m (-50 to 40,000 ft)



  • HP Premier Sound

  • Integrated stereo speakers

  • Integrated microphone (dual-microphone array when equipped with optional 2 MP webcam)

  • Touch-sensitive controls for volume up, volume down, and mute

  • Stereo headphone/line out

  • Stereo microphone/line in

  • Optional 2 MP webcam:

    • Supports videoconferencing and still image capture

    • Large image sensor for excellent color matching and good low light sensitivity

    • Up to 30 frames/s

    • Fixed focus lens

    • Video capture at VGA, 1.3 Mpixel, and 2 Mpixel resolutions

    • 16-bit true color (camera sensors output YCrCb format among others)


Safety certifications

All necessary regulatory approvals for supported countries, including:
  • FCC (47 CFR) Part 15C, Section 15.247 & 15.249

  • ETS 300 328, ETS 300 826

  • Low Voltage Directive IEC950

  • UL, CSA, and CE Mark


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