May i know how to send warranty for INTEL NUC ?
http://www.intel.com/p/en_US/support/warranty

Estimate how many days take to send to KL ?
INTEL Malaysia is in Bayan Lepas, Penang not KL. You need to report/chat the problem first with Intel Customer Service Personnel as some of the problems can be solved online. Some user just anyhow make warranty claim where some is compatibility problems with the user components/devices/software or drivers issues.

That is why our component selling here are fully tested compatible with INTEL NUC.

Interest to get :
Price already listed at 1st Post.

The power cord similar like the laptop ?
The market has many brands & models of laptop which may not the same. Some use 2-Pin, Some use 3-Pin, Some use direct. Intel NUC uses 3-Pin.

Do you have 500GB 2.5" hdd ?
Also already listed at 1st Post.

You based in Johor only ?
Yes.