Category Description HP
ProBook
6555b
Notebook
PC
HP ProBook
6455b
Notebook
PC
HP ProBook
6550b
Notebook
PC
HP ProBook
6450b
Notebook
PC
1024-MB total system memory
(1024 × 1)
NOTE: Not available with 64-bit
operating systems or Media Restore.
Mass storage
devices
Supports 9.50-mm, 6.35-cm
(2.50-in) hard drives and solid-state
drives
√√ √ √
Customer-accessible √√ √ √
Supports HP 3D DriveGuard √√ √ √
Supports the following hard drives:
●
500-GB, 7200-rpm
●
320-GB, 7200-rpm SED
●
320-GB, 7200-rpm
●
250-GB, 7200-rpm
●
160-GB, 7200-rpm
√√ √ √
Supports 128-GB solid-state drive √√ √ √
Supports 80-GB solid-state drive √√ √ √
Optical drive Single screw removal √√ √ √
Customer-accessible √√ √ √
Supports 12.70-mm, optical drives √√ √ √
Supports no drive option in optical
drive bay with slot bezel
√√ √ √
Supports the following optical drives:
●
Blu-ray ROM with LightScribe
DVD±RW SuperMulti Double-
Layer Drive
●
DVD±RW SuperMulti Double-
Layer Drive with LightScribe
●
DVD-ROM Drive
√√ √ √
Supports a 500-GB, 7200-rpm hard
drive with cradle
√√ √ √
Microphone Integrated dual-array digital
microphone only on computer
models equipped with a webcam
√√ √ √
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