Reply to DC Power Adaptor Kontrol S4

After sending 3 emails to Native Instruments, spoke at the community of Native (http://www.native-instruments.com/fo...015#post770015) and have sent an email to the manufacturer Adaptor (who told me they can not sell it).

I'm a little mad... I lost my DC Adaptor loast week... Native does not answer and I bought this: http://parts.digikey.com/1/parts/730...00-p5p-sz.html with a 2.1mm to 2.5mm adapter, it arrive on Thursday in my home... but I'm not sure if the voltage is appropriate.

Do any of you have bought some extra adapter?