Heh,
i got all the cables and connector but it didnt work. I found out, the
pin 1 on the WL-HDD is pin 2. It was bad idea to buy "2.5 inch drive to 3.5 connecor" cable, it must be "3.5 inch drive(s) to 2.5 connector" and of course both female.
Well, durnig testing i have broken the 2.5 connctor on the WL-HDD

and
after 3 hours work solder station ( is this right one word ? ) i got 3.5 inch connector on my WL-HDD. Well, no more 2.5 inch drives, but i works fine.
Sometimes the WL-HDD loses the hdd config after cold start, so no drives mounted on status page.But a simple
http://IP/SaveRestart.asp works fine as warm start.