SX 868 development kit: is XBIB-U-SS?

Hi to all!

Actually I have serial (transparent) link through serial to Bluetooth bridge (HC-05 card), I would like to move to Digi wireless card to increase range.
I’m taking a look to SX 868 but I have following doubt:

it’s available XK8X-DMS-0 development kit but I can’t understand board type. Is XBIB-U-SS board?
I can buy only 2 XBIB-U-SS board, but I’m not sure it’ll fit
I’ve read about forum user placed SX 868 on XBIB and it didn’t work…