Which WiFi shields work out-of-the-box with the WiFi library?

Hi.

I'm looking for the cheapest wifi shield on ebay that will work out-of-the-box with Arduino's WiFi library (because my sketch uses it intensively, specially UDP). I found this one based on the CC3000.

Will it work or it requires a different library? I really need compatibility with Arduino's official library and I'm not sure which hardware to buy (the official shield is pretty expensive).

Best. Thx for your guidance.

The original WiFi shield from Arduino is the only one that works with the WiFi library included in the IDE. The CC3000 needs a different library.

Thanks, that's what I suspected.
Best!!