Successors to the Precision 7540 and Precision 7740 are on their way, and a leaked advert has confirmed that Dell has given them a complete redesign. Predictably called the Precision 7550 and Precision 7750, the two laptops are expected to arrive later this month, but there may be some surprises in store, including no PointStick and possible DGFF incompatibilities with older models.
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https://www.notebookcheck.net/Leaked-Dell-Precision-7550-and-Precision-7750-advert-confirms-design-changes-and-potential-DGFF-incompatibility.463430.0.html