HP 840 Laptop keyboard 

HP 840 Laptop keyboard EliteBook 840's backlit keyboard is tight; it sharply sinks into the chassis, and the keys feel substantial and clicky while you're typing.

The backlighting has only two settings, which is disappointing for a laptop of this price. For business users, however, HP included three useful keys to present, answer and hang up calls HP 840 Laptop keyboard keys have somewhat short travel (1.4 millimeters) but require strong actuation force (77 grams).

We usually look for travel between 1.5 and 2 mm and actuation force above 60 grams. The keyboard is incredibly comfortable, allowing me to sail past my 60-words-per-minute average with 68 wpm on the 10fastfingers typing test.

HP 840 G3/G4 Laptop keyboard specifications

• Layout: QWERTY layout
• Key Count: Standard 101-key layout
• Function Keys: Special function keys for volume, brightness, etc.
• Key Switch Type: Typically scissor-switch keys or similar technology
• Backlighting: Available in some models, providing illumination for keys
• Connectivity: Built-in keyboard interface, usually USB or PS/2
• Material: Durable plastic with key labels printed or engraved
• Key Travel: Approximately 1.5 to 2 millimeters, standard for laptop keyboards
• Key Size: Standard laptop key size and spacing
• Special Keys: May include dedicated keys for power, sleep, and multimedia functions