The MacBook Air is expected to get a refresh this summer. (Justin Sullivan/GETTY IMAGES)

Citing Taiwan-based suppliers, the report says the new computers— an 11.6-inch model and a 13.3-inch model — will have Intel’s Sandy Bridge chips and Apple’s new Thunderbolt ports.

The timing is in line with previous reports about a Sandy Bridge MacBook Air refresh.

There’s been speculation that the new MacBook Air models will be 3G-enabled, after Apple Insider reported that Apple had been asking Air owners about how they use 3G networks.

The MacBook Air was last refreshed in October 2010, when the ultra-slim computers switched to a unibody design.

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