What's the latest model number for Apple TV?

Wikipedia says there are two models with 3rd generation apple tv:

A1427 - AppleTV3,1 - MD199LL/A
A1469 - AppleTV3,2 - MD199KS/A

When I go to Amazon and other online stores, I only see MD199LL/A. Do I get MD199KS/A model if I order from Apple Store? Is the MD199KS/A model available for sale exclusively from Apple Store?

Thanks

Apple TV

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