When Amazon’s mega-warehouse on Boxwood Road near Newport stowed its first product last week – a plush dog toy – it became the largest operational Amazon facility in the country.

Covering roughly 640,000 square feet of ground space and five stories high, the new warehouse totals 3.8 million square feet, making it more than three times the size of Amazon’s Middletown fulfillment center.

“The size is huge,” said Amazon manager Qadir Stevenson.

But it’s not just the size that sets the Boxwood Road facility apart. The fulfillment center features all of Amazon’s latest technology, including robots that move products miles every day and sensors that detect when and where a product is stowed.

Amazon invited media on a tour of the facility Tuesday afternoon. Here’s what we saw.

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1. How does it work?

Nothing is manufactured at the Boxwood Road facility.

Amazon sellers send products to the warehouse where they are stored and eventually packaged for delivery to customers. The game is getting products from one point to another as efficiently as possible.