Which product holds the Guinness World Record for 'fastest-selling consumer electronics item' by selling 8 million units in its first 60 days on the market?

The Guinness World Records not only tracks human achievements but also remarkable feats in business and product launches. Some product debuts have been so spectacular they've earned their place in the record books. Test your knowledge about the intersection of world records and product innovation with this challenging trivia question about a legendary product launch that broke multiple records simultaneously.

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Apple iPhone 6/6 Plus (2014)
Microsoft Kinect for Xbox 360 (2010)
Sony PlayStation 4 (2013)
Nintendo Switch (2017)