Asus CUSL-L 815 microATX User Manual page 20

3. HARDWARE SETUP
3) Universal Serial BUS Ports 0 & 1 (Black two 4-pin USB)
Two USB ports are available for connecting USB devices. For additional USB
ports, you can use the USB headers (see USB Headers later in this section) and
mount new ports to the chassis.
Universal Serial Bus (USB)
4) Parallel Port Connector (Burgundy 25-pin PRINTER)
Enable the parallel port and choose the IRQ through Onboard Parallel Port
command.
NOTE: Serial printers must be connected to the serial port.
Parallel (Printer) Port (25-pin female)
CUSL-L User's Manual 19