KOORUI S2721PM 27-Inch 2K QHD 200Hz 1ms QD Mini-LED Gaming Monitor — Complete Technical Overview
The KOORUI S2721PM is a flagship-tier 27-inch 2K QHD (2560 × 1440) gaming and creative monitor that brings true Quantum Dot (QD) Mini-LED Full-Array Local Dimming (FALD) hardware and VESA Certified DisplayHDR 1000 performance to fast-refresh desktop setups. Engineered around a high-speed Fast IPS liquid-crystal panel backed by 1,152 independent Mini-LED dimming zones, the S2721PM bridges the divide between esports responsiveness and cinema-grade HDR mastering. It combines a 200Hz native refresh rate and 1ms (GtG) response time with up to 1,000 nits of peak HDR luminance, a 300,000:1 local-dimming contrast ratio, and a Quantum Dot color pipeline covering 99% Adobe RGB, 97% DCI-P3, and 99% sRGB.
Traditional edge-lit IPS gaming monitors struggle in dark-room HDR games and movies because their single backlight strip illuminates the entire panel at once, turning deep space scenes or shadowy dungeons into a washed-out gray glow. By partitioning its Mini-LED backlight into 1,152 individually controlled zones, the KOORUI S2721PM dims dark regions down to near-zero black levels while driving bright explosions, neon reflections, and sunbeams up to a searing 1,000 nits—without the permanent burn-in risk or aggressive full-screen auto-brightness limiting (ABL) of organic panels.
1,152-Zone Quantum Dot (QD) Mini-LED Full-Array Local Dimming Architecture
The defining engineering achievement of the KOORUI S2721PM is its multi-layer QD Mini-LED optical stack. Behind the 27-inch Fast IPS cell sits a dense matrix of thousands of sub-millimeter Mini-LED emitters grouped into 1,152 autonomous Full-Array Local Dimming (FALD) zones, paired directly with a Quantum Dot nanocrystal enhancement film:
- 3× Denser Zone Granularity than Entry Mini-LEDs: Whereas first-generation 27-inch Mini-LED monitors typically rely on 384 or 576 zones, the S2721PM’s 1,152-zone grid shrinks each dimming zone to roughly 4.5 × 4.5 mm on screen. Small bright objects—such as starfields, HUD elements, subtitles, or weapon reticles—are illuminated with tight spatial precision, dramatically minimizing haloing and blooming around high-contrast edges.
- VESA Certified DisplayHDR 1000 Peak Output: In HDR1000 mode, the backlight delivers up to 1,000 nits of peak luminance (alongside 350 to 550 nits of sustained SDR brightness), giving specular highlights lifelike depth and impact that standard HDR400 displays cannot replicate.
- 300,000:1 Local-Dimming Static Contrast Ratio: Combining the 1,000:1 native contrast of the Fast IPS cell with 1,152-zone active dimming produces a 300,000:1 effective contrast ratio, preserving shadow micro-detail in dark horror titles and atmospheric RPGs alongside brilliant highlights.
Studio-Grade Quantum Dot Color Gamut: 99% Adobe RGB, 97% DCI-P3 & 10-Bit Depth
Because the Mini-LED backlight passes through a dedicated Quantum Dot (QD) layer, the KOORUI S2721PM achieves spectral purity that makes it equally suited for professional photo retouching, print layout, and 4K/2K video color grading:
- 99% Adobe RGB Coverage: Captures the full cyan-green gamut required for commercial photography, Lightroom/Photoshop workflows, and pre-press proofing.
- 97% DCI-P3 Coverage: Reproduces rich theatrical reds, oranges, and greens for HDR filmmaking, DaVinci Resolve timelines, and modern AAA game mastering.
- 99% sRGB Coverage: Ensures accurate, unclipped reproduction for web design, UI/UX engineering, and streaming media.
- 10-Bit Color Support (8-Bit + FRC, 1.07 Billion Colors): Renders smooth 1,024-step tonal transitions per RGB channel, eliminating visible banding in subtle sky gradients, underwater scenes, and studio lighting vignettes.
27-Inch 2K QHD (2560 × 1440) Fast IPS Panel with 200Hz Refresh Rate & 1ms GtG
For competitive gamers, the KOORUI S2721PM pairs its Mini-LED HDR engine with a tournament-grade 2560 × 1440 (2K QHD) Fast IPS panel in a flat 16:9 geometry. At 27 inches (596.736 × 335.664 mm active display area), QHD resolution packs 3.68 million pixels at ~109 PPI (0.2331 mm pixel pitch)—delivering 77.7% more screen real estate than 1920 × 1080 Full HD:
- 200Hz High Refresh Rate: Over DisplayPort 1.4, the monitor updates 200 times per second (5.0 ms frame interval), offering fluid target tracking, lower system latency, and crisper motion clarity during rapid 180-degree camera turns than 144Hz or 165Hz panels.
- 1ms (GtG) Response Time & DIC Motion Blur Reduction: Fast IPS liquid-crystal overdrive achieves 1ms gray-to-gray transitions, while KOORUI’s DIC (Dynamic Image Clarity) backlight strobing technology further sharpens fast-moving objects in competitive shooters and racing sims.
- AMD FreeSync & NVIDIA G-SYNC Compatible (48–200Hz): Variable Refresh Rate (VRR) synchronization dynamically locks the monitor’s refresh cycle to your GPU’s real-time frame rate, eliminating screen tearing and frame-time judder.
- Wide 178° / 178° Viewing Angles: Fast IPS pixel geometry ensures consistent color and contrast from off-center angles or when rotated into vertical portrait mode.
Split-Screen Multitasking: Picture-in-Picture (PiP) & Picture-by-Picture (PbP)
Designed for power users who juggle multiple systems on a single desk, the KOORUI S2721PM includes hardware Picture-in-Picture (PiP) and Picture-by-Picture (PbP) multi-source processing. You can connect a gaming PC via DisplayPort 1.4 and a work laptop, MacBook, or gaming console via HDMI 2.0, then either split the 27-inch screen into two side-by-side windows (PbP) or float a secondary video feed in the corner of your main workspace (PiP)—allowing you to monitor live compilation logs, financial charts, or a secondary stream while gaming or working.
Connectivity Layout & 5-Way OSD Navigation Joystick
The downward-facing rear I/O bay provides clean connectivity for multi-device setups:
- 1 × DisplayPort 1.4: Supports the full native 2560 × 1440 resolution at up to 200Hz with 10-bit color, HDR1000, and G-SYNC / FreeSync VRR.
- 2 × HDMI 2.0 Inputs: Two HDMI ports supporting up to 2560 × 1440 resolution at 144Hz for PCs and laptops, as well as 1440p / 120Hz output from PlayStation 5 and Xbox Series X|S consoles.
- 1 × 3.5 mm Audio Out Jack: Connects external powered speakers, soundbars, or wired gaming headphones to play digital audio transmitted over DisplayPort or HDMI.
- Rear 5-Way OSD Joystick: A single intuitive directional controller on the back right side lets you toggle local dimming zones, HDR1000, on-screen crosshairs, timers, PiP/PbP layouts, and input sources without fumbling for multiple bottom-edge buttons.
4-Way Ergonomic Stand, VESA mounting (confirm exact revision) & Eye-Care Engineering
To support long editing and gaming sessions in complete comfort, the KOORUI S2721PM includes a sculpted black ergonomic stand with a red-accented cable routing oval and a stable geometric base:
- Height Adjustment: 0 to 110 mm of vertical lift to position the screen at ergonomic eye height.
- Pivot Rotation: -90° to +90° bi-directional rotation for vertical portrait coding, document review, or dual-monitor symmetry.
- Swivel Range: -30° left to +30° right horizontal swivel.
- Tilt Range: -5° forward to +20° backward pitch adjustment.
- VESA mounting (confirm exact revision): Easily detaches from the stand for mounting on single or dual gas-spring monitor arms.
- Flicker-Free & Low Blue Light Eye Care: Combines a low-reflection matte anti-glare coating with Flicker-Free power regulation and configurable Low Blue Light filtering to minimize eye fatigue during extended day-and-night use.
Power Architecture, Physical Dimensions & Ideal Use Cases in Bangladesh
To drive 1,152 Mini-LED zones up to 1,000 nits peak luminance while keeping the display chassis slim and thermally balanced, the KOORUI S2721PM utilizes an external DC 19V / 4.74A power adapter rated for up to 90W maximum power consumption under full HDR load and under 0.5W in standby mode. With the ergonomic stand attached, the monitor measures 612.98 mm wide × 213.97 mm deep × 542.65 mm high (listed in retail imperial specifications as 8.42" D × 21.26" W × 20.32" H) and weighs approximately 6.25 kg, offering a stable footprint on standard gaming desks.
Whether you are building a high-refresh 1440p gaming rig for competitive shooters and cinematic single-player RPGs, connecting a PlayStation 5 or Xbox Series X for HDR1000 console gaming, or grading wide-gamut Adobe RGB and DCI-P3 content on a calibrated workstation, the KOORUI S2721PM delivers true 1,152-zone Full-Array Local Dimming and 200Hz Fast IPS speed backed by a 3-year warranty.
