Front Side - Asus X751L E-Manual

HDMI port
This port is for the HDMI (High-Definition Multimedia Interface)
connector and is HDCP compliant for HD DVD, Blu-ray, and other
protected content playback.
USB 3.0 port
The USB 3.0 (Universal Serial Bus 3.0) port provides a transfer rate
of up to 5 Gbit/s and are backward compatible to USB 2.0.
Headphone/Headset/Microphone jack
This port allows you to connect amplified speakers or
headphones. You can also use this port to connect your headset
or an external microphone.

Front Side

Memory card reader
This built-in memory card reader supports SD and SDHC card
formats.
20 Notebook PC E-Manual