30pin header socket and 12pin header socket are for the ODROID-XU4. 
It is useful when you make your own shield for the ODROID-XU4. 
The XU4 Shifter Shield uses the exactly same header sockets 

Height is 16mm with 2.0mm pitch.

ODROID 30pin GPIO Ribbon Cable for XU4 [77914]

  • Brand: Hard Kernel
  • Product Code: ODROID 30pin GPIO Ribbon Cable for XU4
  • Availability: Pre-Order
  • 3.60€