Dell 34 S3422DWG 34" 21:9 Curved FreeSync WQHD 144 Hz HDR VA Gaming Monitor - Manual (Page 17)

About your monitor │ 17
Resolution specifications
Model S3422DWG
Horizontal scan range 29 kHz to 200 kHz
Vertical scan range 48 Hz to 100 Hz (HDMI)
48 Hz to 144 Hz (DP)
Maximum preset
resolution 3440 x 1440 at 144 Hz (DP)
3440 x 1440 at 100 Hz (HDMI)
Supported video modes
Model S3422DWG
Video display capabilities
(HDMI/DP) 480p, 480i(HDMI), 576p, 720p, 1080p, 576i(HDMI),
1080i(HDMI), 1440p, 2160p