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Dell S2721DGF 27" QHD 165Hz Gaming Monitor

FPS Gaming, Competitive Gaming, Esports, Productivity

Overview

The Dell S2721DGF is a 27-inch QHD (2560x1440) IPS gaming monitor with a 165Hz refresh rate and 1ms response time, long one of the most recommended 1440p gaming displays. Its 98% DCI-P3 coverage, DisplayHDR 400, and dual-platform adaptive sync make it equally strong for competitive shooters and immersive single-player titles. An ergonomic stand and versatile ports round out the package.

Key Highlights

  • 27-inch QHD (2560x1440) IPS panel with a fast 165Hz refresh rate for fluid, tear-free gaming
  • 1ms Gray-to-Gray response time keeps fast action crisp with minimal ghosting
  • 98% DCI-P3 color coverage plus DisplayHDR 400 for vivid, accurate colors
  • FreeSync Premium and G-SYNC Compatible support smooth frames on both GPU camps
  • Fully ergonomic stand with height, tilt, swivel, and pivot, plus a 100x100mm VESA mount

Technical Specifications

Brand Dell
Model Dell S2721DGF 27" QHD 165Hz Gaming Monitor
Display Size 27" (68.6 cm)
Resolution 2560 x 1440 (QHD)
Aspect Ratio 16:9
Panel Type IPS
Refresh Rate 165Hz
Response Time 1ms (GTG)
HDR Support DisplayHDR 400
Variable Refresh FreeSync Premium, G-SYNC Compatible
Brightness 350 cd/m² (typical)
Contrast Ratio 1000:1
Color Gamut 98% DCI-P3
Connectivity 1x DisplayPort 1.4, 2x HDMI 2.0, 4x USB 3.0
Ports & I/O 2x HDMI 2.0 1x DisplayPort 1.4 4x USB 3.0 1x 3.5mm Audio Out
Stand Height, tilt, swivel, pivot ergonomic stand
VESA Mount 100 x 100 mm
Weight 4.27 kg (9.42 lb)
Dimensions 611.6 x 563.5 x 250 mm (stand)

Fix Guides for the Dell S2721DGF 27" QHD 165Hz Gaming Monitor

Step-by-step fixes for common issues with this gadget

🔧 Fix Guide

How to Fix Flickering on the Dell S2721DGF

21 Aug 2026

Causes the S2721DGF being driven below its native 165Hz refresh, Adaptive-Sync (FreeSync / G-Sync Compatible) fluctuation flicker near the bottom of the variable range, a loose or low-bandwidth DisplayPort/HDMI cable, an incompatible GPU driver, and a faulty USB-C/DP adapter chain. Fixes in order: set 165Hz, toggle Adaptive-Sync, swap the cable and port, update the GPU driver, and power-cycle.

🔧 Fix Guide

How to Fix Ghosting / Motion Blur on the Dell S2721DGF

21 Aug 2026

Causes the response time (overdrive) setting left off or at an extreme level, the refresh rate running below its native 165Hz, VRR/Adaptive-Sync interfering with overdrive, a low preset that the OSD applies to slow transitions, and GPU frame pacing issues. Fixes in order: enable Fast Response / overdrive in the OSD, confirm 165Hz, test overdrive levels, disable Adaptive-Sync, and update the GPU driver.

🔧 Fix Guide

How to Fix No Signal / Black Screen on the Dell S2721DGF

21 Aug 2026

Causes the active input source not matching the cable in use, a loose or low-bandwidth DisplayPort/HDMI cable, a DP handshake failure on boot or wake-from-sleep, connecting to the motherboard instead of the graphics card, and PC-side boot issues. Fixes in order: power-cycle correctly, select the right input, reseat the cable, use the GPU output, recover from wake-from-sleep, and lower the refresh temporarily.