The boxes indicate that they are the "prospectors" (from the website they are 512GH/s costing $2999)

but they will never be profitable: https://tradeblock.com/mining/a/eda9b0bf10

On top of this, you have the questionable trustworthiness of VMC as a company to deal with.

even if they were giving these out for free, I'd still question if it was worth all the hassle dealing with their BS.