I searched a little further and suspect that the cables are not included.
"Optional Intel® RAID cable kit AXXCBL650HDMS includes two 650mm cables with HD SFF 8643 mini-SAS to 8087 mini-SAS connectors."
You can't compare an onboard software RAID with a HW RAID controller. That's why these cards are so idiotically expensive...

I searched a little further and suspect that the cables are not included.
"Optional Intel® RAID cable kit AXXCBL650HDMS includes two 650mm cables with HD SFF 8643 mini-SAS to 8087 mini-SAS connectors."
You can't compare an onboard software RAID with a HW RAID controller. That's why these cards are so idiotically expensive...

Akasa Proslim SATA 3 Cable (50cm, Black)
For the price you get ha a whole motherboard with RAID controller.... :-)