AmigaOne X1000 Internal Serial Cable
Connects to the serial header on the X1000 motherboard and provides 1x Serial 9-pin D-Sub port (Male).
This cable is essential for capturing serial debug output.
Connects on X1000 motherboard at either 
RS232 #0 or 
RS232 #1 with the 
black wire nearest the white arrow printed on the motherboard's silkscreen.
Don't Forget:

   
X1000 Firmware Flash Upgrade Service

   
Anti Static Wrist Strap Band