DELL WARRANTY VALID THRU DECEMBER 11, 2028. USED Open-Box: Minor cosmetic marks, Very Minor Dent on Back of Unit Near Power Button,(SEEL PIC 2) & Blemishes on Neck Stand, complete set. Professionally inspected, fully operational. * —Dell UltraSharp U2724D Monitor —27″ 2560 x 1400 IPS LCD Display —Aspect Ratio – 16:9 —Max Brightness – 350 cd/m2 —Contrast Raito – 2000:1 —Response Time – 5 ms, 8 ms —Refresh Rate – 120 Hz —Multi-Input Support – Yes, Picture-in-Picture (PIP), Pictures-by-Picture (PBP) —Adjustments – Height, Tilt, Rotation, Swivel —VESA Mounting Hole Pattern – 100 x 100 mm.