DELL S Series 27 4K UHD Monitor S2721QSA. Display diagonal: 68.6 cm (27 quot;), Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Display technology: LCD, Response time: 4 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178 , Viewing angle, vertical: 178 . Built in speaker(s). VESA mounting, Height adjustment. Product colour: Black, Silver
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