laptop cooling pad under 4k?

[anmol4all]

i have a samsung np550p5c s02in and i want ti buy a cooling pad for it.
i am considering notepal infinte evo and notepal x3
some says u3 is also good?
please suggest any other better than these if you know. i can expand my budget for it.

 

[The Incinerator]

COOLER MASTER NOTEPAL X3 / DEEPCOOL NOTEBOOK COOLER N8 ULTRA BLACK

or

COOLER MASTER SF

 

[anmol4all]

COOLER MASTER NOTEPAL X3 / DEEPCOOL NOTEBOOK COOLER N8 ULTRA BLACK

or

COOLER MASTER SF

U3 also got some great reviews for its customizablity, what about it.
have you used X3?

 

[The Incinerator]

My friend uses it and for the money the cooling is really good.

 

[sam_738844]

COOLER MASTER NOTEPAL X3 / DEEPCOOL NOTEBOOK COOLER N8 ULTRA BLACK

or

COOLER MASTER SF

I have been using Cooler Master Notepal ErgoStand Cooling Pad (Black) --2821 thethen price at flipkart, with my DELL XPS and it has proved quite good in terms of cooling , an adjustable stand for 15.6 Inch with three height settings and also works as a USB hub.