Category | Description | HP | HP ZBook | HP |
| | | EliteBook | EliteBook |
| | | 840 | 14 | 850 |
| | | | |
| Two customer-accessible/upgradable memory module slots | | √ | |
| with the following specifications: | | | |
| DDR3L-1600-MHz dual channel support | | | |
| Supports 16384-MB of system RAM in the | | | |
| following configurations: | | | |
| ● | 16384-MB (8192-MB×2) | | | |
| ● 8192-MB (8192-MB×1 or 4096×2) | | | |
| ● 8192-MB (8192-MB×1 or 4096×2; not supported on | | | |
| | computer models equipped with a 32-bit | | | |
| | operating system) | | | |
| ● 4096-MB (4096-MB×1 or 2048-MB×2) | | | |
| | | | |
Primary storage | Supports 6.35-cm (2.5-in) hard drives in 9.5-mm (.37-in) and | √ | √ | √ |
| 7.0-mm (.28-in) thicknesses (all hard drives use the | | | |
| same bracket) | | | |
| Customer-accessible | | | |
| | | | |
| Supports the following hard drives: | √ | | √ |
| ● | 1-TB, 5400-rpm | | | |
| ● 500-GB, 7200-rpm, self-encrypting drive (SED) | | | |
| ● | 500-GB, 7200-rpm | | | |
| ● 500-GB, 5400-rpm, self-encrypting drive (SED, | | | |
| | FIPS-140-2) | | | |
| ● | 500-GB, 5400-rpm | | | |
| ● | 320-GB, 7200-rpm | | | |
| ● | 320-GB, 5400-rpm | | | |
Supports the following SSDs:
●256-GB SATA III, SED
●240-GB, SATA III
●180-GB, SATA III
●128-GB
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