Thunderbolt displays are great and incredibly flexible, but are generally overkill for users just looking for 4K. Ostensibly aimed at gamers, the BenQ EL2870U 4K display is an affordable 4K display with good video connectivity options.
BenQ EL2870U 27.9 4K Ultra HD LED Flat Grey Computer Monitor : Electronics
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BenQ EL2870U 28 inch 4K HDR Gaming Monitor Review
Review: The BenQ EL2870U monitor is an inexpensive gateway into 4K & desktop HDR
BenQ EL2870U Review: Affordable 4K HDR? Maybe NOT, Watch Before You Buy
The best 4K gaming monitors
BenQ EL2870U Review: Affordable 4K HDR? Maybe NOT, Watch Before You Buy
Review: The BenQ EL2870U monitor is an inexpensive gateway into 4K & desktop HDR
BenQ EL2870U 27.9 4K Ultra HD LED Flat Grey Computer Monitor : Electronics
BenQ EL2870U Gaming Monitor 28 4K UHD 1ms, TN, AMD FreeSync, Eye-Care Tech, Anti-Glare, Brightness Intelligence Plus, Tilt Screen, Built-In Speakers, DisplayPort
BenQ EL2870U 28 inch 4K HDR Gaming Monitor Review