Jusb3~4: Usb 2.0 Expansion Connectors; Jci1: Chassis Intrusion Connector - MSI X99A SLI KRAIT EDITION User Manual

JUSB3~4: USB 2.0 Expansion Connectors

This connector is designed for connecting high-speed USB peripherals such as USB
HDDs, digital cameras, MP3 players, printers, modems, and many others.
Important
Note that the VCC and GND pins must be connected correctly to avoid possible
damage.

JCI1: Chassis Intrusion Connector

This connector connects to the chassis intrusion switch cable. If the computer case is
opened, the chassis intrusion mechanism will be activated. The system will record this
intrusion and a warning message will flash on screen. To clear the warning, you must
enter the BIOS utility and clear the record.
1-27 Getting Started