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Sitting at the top of ASUS' consumer-focused motherboard line for X299 is the ASUS Prime X299-Deluxe. In the past, ASUS' 'Deluxe' line-up has attempted to emulate the status of the Mercedes S-Class but in motherboard form: showcasing new technology that may eventually filter down into where the bulk of the market sits over the next 3-5 years. The newest X299-Deluxe thus comes with a few of those technological features, such as WiGig and an informational OLED display, but also comes with onboard U.2 and a bundled Thunderbolt 3 add-in card. The Prime X299-Deluxe is the most expensive X299 motherboard we have tested to date.