There are four development kits for the SCI series: the 9401, 9402, 9403 and 9404 series. To enable immediate testing, specific kits are provided with headers mounted to a test board populated with multiple single-ended and differential SMA connections. For convenience, these connections allow both ends of a cable assembly to be connected to the same test board for through type measurements. If separate ground planes are desired, two kits may be used to perform similar measurements utilizing two different test boards.