Lenovo IDEAPAD U330 User Manual page 15

IEEE 1394 connector ....................................................................... 41
USB 2.0 port ..................................................................................... 40
PCI Express card (new card) slot ................................................... 42
Optical drive ..................................................................................... 20
AC power adapter jack
Connect the power adapter here to supply power to the computer and
charge the battery pack.
Note:
To prevent damage to the computer and battery pack, use the supplied
AC adapter only.
Security keyhole
Your computer comes with a security keyhole. You can purchase a
security cable and lock to fit this keyhole.
Note:
Before purchasing any security product, verify that it is compatible
with this type of security keyhole.
Chapter 1. Getting to Know Your Computer
6