HP EliteBook 840 G2 Notebook PC HP EliteBook 740 G2 Notebook PC HP ZBook 14 G2 Mobile Workstation - Maintenance and Service Guide
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Item Component Description
(1) Audio-out (headphone)/Audio-in (microphone) jack Connects optional powered stereo speakers, headphones, 
earbuds, a headset, or a television audio cable. Also 
connects an optional headset microphone. This jack does 
not support optional microphone-only devices.
NOTE: When a device is connected to the jack, 
the computer speakers are disabled.
NOTE: Be sure that the device cable has a 4-conductor 
connector that supports both audio-out (headphone) and 
audio-in (microphone).
WARNING! To reduce the risk of personal injury, adjust 
the volume before putting on headphones, earbuds, or a 
headset. For additional safety information, see 
the Regulatory, Safety, and Environmental Notices.
To access this guide:
Windows 10:
1. Type support in the taskbar search box, and then 
select the HP Support Assistant app.
– or –
Click the question mark icon in the taskbar.
2. Select My PC, select the Specifications tab, and then 
select User Guides.
Windows 8 or Windows 7:
▲
Select the HP Support Assistant app on the Start 
screen, select My computer, and then select User 
guides.
(2) DisplayPort Connects an optional digital display device, such as a high-
performance monitor projector.
(3) USB 3.0 ports Connect optional USB devices, such as a keyboard, mouse, 
external drive, printer, scanner or USB hub.
(4) Memory card reader Reads optional memory cards that store, manage, share, 
or access information.
28 Chapter 2 Getting to know your computer ENWW










