MSI Z77A-GD55 Instruction Manual page 31

JUSB4: USB 3.0 Expanson Connector
The USB 3.0 port s backwards compatble wth USB 2.0 devces. It supports data trans-
fer rates up to 5Gbts/s (SuperSpeed).
USB 3.0 Bracket (optonal)
Important
• Note that the VCC and GND pns must be connected correctly to avod possble
damage.
To use a USB 3.0 devce, you must connect the devce to a USB 3.0 port through an
•
optonal USB 3.0 complant cable.
JCI1: Chasss Intruson Connector
Ths connector connects to the chasss ntruson swtch cable. If the computer case s
opened, the chasss ntruson mechansm wll be actvated. The system wll record ths
ntruson and a warnng message wll flash on screen. To clear the warnng, you must
enter the BIOS utlty and clear the record.
* The MB layout n ths figure s for reference only.
En-21