2560x1440 or 2560x1600 via HDMI - NotebookCheck.net Tech
Dell UltraSharp™ U2711 69 cm (27") Monitor with PremierColor Details | Dell Middle East
Dell UltraSharp U2711 27 inch Monitor with PremierColor Details | Dell St. Vincent & Grenadines
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Setting the maximum resolution, Using the dell soundbar (optional), Using the tilt, swivel and vertical extension | Dell U2711 Monitor User Manual | Page 33 / 43
Dell UltraSharp™ U2711 69 cm (27") Monitor with PremierColor Details | Dell Middle East
HDMI with resolution 2560 x 1440 possible? - Super User