Dahua DHI-LM27-E341AY 27" QHD IPS 275Hz Gaming Monitor

Dahua DHI-LM27-E341AY 27-Inch QHD (2560 × 1440) 275Hz IPS Gaming Monitor — Complete Technical Buyer Guide

The Dahua DHI-LM27-E341AY (also cataloged in Dahua global consumer documentation as the LM27-E341AY) is a high-refresh-rate 27-inch flat gaming and productivity monitor engineered for competitive esports players, fast-action PC gamers, and multi-window desktop users in Bangladesh. Combining a sharp QHD (2560 × 1440) resolution with an 275Hz maximum refresh rate on an E-LED backlit IPS (In-Plane Switching) liquid-crystal panel, the DHI-LM27-E341AY steps beyond standard 180Hz and 240Hz 1440p monitors to deliver shorter frame persistence alongside dual response-time ratings of 0.5ms (OD — Overdrive) and 1ms (MPRT — Moving Picture Response Time).

Within Dahua's 27-inch QHD E341 gaming monitor family, buyers should pay close attention to the exact model suffix: the DHI-LM27-E341AY is the 275Hz QHD IPS model specified with a 120mm height-adjustable ergonomic stand, whereas its sibling, the Dahua DHI-LM27-E341A (LM27-E341A), is a 240Hz QHD IPS model. Understanding the exact technical specifications—as well as several specification-table discrepancies across local Bangladesh retailer listings—ensures an informed buying decision.

1. 27-Inch QHD (2560 × 1440) Resolution & IPS Panel Architecture

Across its 27-inch diagonal flat screen and 16:9 widescreen aspect ratio, the Dahua DHI-LM27-E341AY renders 2560 (H) × 1440 (V) pixels, totaling 3,686,400 individual pixels at a pixel density of approximately 108.79 pixels per inch (PPI). Compared with a 27-inch Full HD (1920 × 1080, ~81.59 PPI) monitor, QHD provides 77.7% more pixel real estate:

• Crisp Spatial Resolution in Competitive & AAA Titles: At typical desk seating distances of 60 cm to 80 cm, the ~109 PPI pixel grid eliminates coarse pixelation on distant horizons, foliage, and fine crosshair/HUD elements, giving players clearer target recognition in tactical shooters and battle-royale games.
• Unscaled 100% Desktop Workspace: For programming, financial spreadsheets, CAD layouts, and video timeline editing, 2560 × 1440 on a 27-inch screen operates cleanly at 100% native operating-system scaling in Windows and macOS, allowing side-by-side dual-window multitasking without cramped text.
• IPS Viewing Angles & Anti-Glare Coating: The IPS panel maintains consistent color and gamma across wide 178° horizontal and 178° vertical viewing angles. An anti-glare matte surface treatment (rated at Haze 25% in Dahua E341-series documentation) diffuses ambient room reflections and overhead lighting glare.

2. 275Hz Refresh Rate, 0.5ms (OD) / 1ms (MPRT) Response & Adaptive Sync

The headline performance advantage of the DHI-LM27-E341AY is its 275Hz refresh rate combined with rapid liquid-crystal transition tuning:

• 275Hz Frame Pacing (3.64ms Frame Interval): At 275Hz, the display updates once every 3.64 milliseconds, compared with 16.67 ms at 60Hz, 5.56 ms at 180Hz, and 4.17 ms at 240Hz. In high-frame-rate esports titles such as Counter-Strike 2, Valorant, Apex Legends, Overwatch 2, and Rainbow Six Siege, the faster refresh cycle improves motion continuity and reduces sample-and-hold eye-tracking blur when paired with a capable GPU.
• Dual Response Time Ratings — 0.5ms (OD) & 1ms (MPRT): Dahua specifications publish both 0.5ms (OD — Overdrive) is the manufacturer-listed response figure. Some local retailers separately list 1ms (MPRT), a different response-time measure for reduced motion persistence during fast camera pans. Users can tune the overdrive level in the on-screen display (OSD) menu to balance transition speed against inverse ghosting (overshoot).
• Adaptive Sync Variable Refresh Rate (FreeSync / G-Sync Compatibility Context): Dahua lists Adaptive Sync support to synchronize the monitor's vertical refresh rate dynamically with the GPU's frame output, preventing screen tearing and micro-stutter. Note that while local Bangladesh retail specification sheets explicitly list Free Sync Support: Yes and G-Sync Support: Yes, the monitor utilizes the Adaptive Sync; the cited Dahua source does not certify NVIDIA G-SYNC Compatible behavior, and Dahua does not publish formal AMD FreeSync tier or NVIDIA G-Sync Compatible certification badges. Buyers should verify variable refresh rate behavior with their specific AMD Radeon or NVIDIA GeForce GPU over DisplayPort.

3. 95% DCI-P3 Color Gamut, 350 cd/m² Brightness & HDR10

Dahua specifies a 95% DCI-P3 color gamut, typical brightness of 350 cd/m², a 1000:1 contrast ratio, and HDR 10 input support. Some Bangladesh retailer tables label the color-support figure as 95% NTSC. NTSC and DCI-P3 are different color spaces, so those percentages should not be treated as equivalent. For buyers who compare display color, the manufacturer’s exact label is 95% DCI-P3.

• Wide-gamut color: The published 95% DCI-P3 specification describes a wide-gamut display. It does not by itself establish factory calibration, Delta E accuracy, or uniformity across the panel; professionals who need color-critical work should check calibration requirements and use a measured workflow.
• 350 cd/m² typical brightness and 1000:1 contrast: These are the manufacturer’s stated brightness and contrast figures. They are useful for comparing indoor display specifications, but real perceived brightness and black level also depend on room lighting, settings, and the source material.
• HDR 10: Dahua lists HDR 10 in the specifications. The sheet does not list a VESA DisplayHDR tier or provide a local-dimming specification, so the product copy makes no certification or local-dimming claim.
• Panel surface: Dahua lists Haze 25%, 2H surface treatment. This describes the screen finish; it is not a guarantee that reflections disappear in every room or viewing angle.

4. Video & Audio Connectivity — Reconciling Retailer Port Specification Conflicts

A thorough audit of the existing catalog snapshot and Bangladesh retailer specification tables for the Dahua DHI-LM27-E341AY reveals an internal inconsistency across port rows that buyers should be aware of:

• Official Dahua 275Hz E341AY Specification vs. Mixed Retailer Port Rows: In Dahua's specification documentation for the DHI-LM27-E341AY (LM27-E341AY), the video and audio interface configuration comprises 2 × DisplayPort 1.4 (supporting native 2560 × 1440 up to 275Hz), 2 × HDMI 2.1 (supporting native 2560 × 1440 up to 240Hz), and 1 × Audio Out (3.5mm stereo jack).
• Why Retailer Tables Show Conflicting Port Values: On several local Bangladesh retail pages (including the Star Tech scrape that populated the initial catalog attributes), the top summary attribute (Ports) lists DP1.4×2, HDMI 2.0×2, Audio out×1 (carried over from the 240Hz DHI-LM27-E341A sibling template), while the lower individual rows on the exact same page list Display Port: 1x DP and HDMI: 2 × HDMI 2.1. To reach the full 275Hz refresh rate at 2560 × 1440, users should connect their PC graphics card via DisplayPort 1.4 using the included DisplayPort cable. If you require two simultaneous DisplayPort connections or specific HDMI 2.1 bandwidth behavior, verify the exact rear I/O revision on the physical unit with the seller prior to purchase.
• Audio Out Jack (No Built-in Internal Speakers): The 3.5mm audio-out port routes digital audio received over DisplayPort or HDMI to external headphones or powered desktop speakers. The monitor does not include built-in internal speakers or a USB hub.

5. Stand Adjustments, VESA Mount, Dimensions & Weight

Dahua’s exact-model specification lists tilt, swivel, vertical rotation, and height adjustment, giving this display more positioning flexibility than a tilt-only stand. The three catalog images show a front view, a three-quarter view, and the rear housing; they do not prove every stand adjustment or establish what accessories are included in every regional box.

• Stand range: The Dahua datasheet lists tilt from -5° to +15°, left/right rotation from -25° to +25°, vertical rotation from -90° to +90°, and height adjustment up to 120mm. Check the stand and its adjustment locks on the delivered unit and keep the display supported while adjusting.
• VESA mounting: A 100 × 100mm VESA pattern is listed. A compatible third-party arm or wall mount can provide a different positioning setup; mount hardware and load rating must match the display.
• Dimensions: Dahua lists 614.3 × 366.8 × 57.2mm without the base. Package dimensions are 861 × 460 × 170mm. Leave room for the stand, cables, and the display’s adjustment range when planning a desk setup.
• Weight: The manufacturer sheet lists 5.35kg net and 6.9kg gross. Retailer rows may differ; use the exact-model manufacturer figure for planning a monitor arm and confirm the shipped package with the seller.
• Finish and controls: The catalog images show a black housing, centered Dahua logo, five lower-right controls, rear ventilation openings, and a VESA mounting recess. Image appearance can vary by lighting and does not replace the written specification.

6. External Power Adapter, Consumption & Operating Environment

The exact-model Dahua datasheet identifies an external adapter rated at 19V DC, 3.42A. Its listed power figures are 26W basic, 30W typical, 38W maximum, and less than 0.5W in standby. These are manufacturer ratings for specified conditions, not a promise that every use pattern will draw the same amount of power.

The official operating range is 0°C to +40°C and 10%–80% relative humidity. Keep ventilation openings unobstructed and use the supplied, region-compatible adapter. Dahua’s published accessory list includes a power adapter, base, DisplayPort cable, user’s manual, quick-start guide, and legal/regulatory information; retail box contents can vary by market, so check the sealed box with the seller.

7. Bangladesh Market Price Context & Warranty Verification (2026-11-05)

In our dated Bangladesh retail cross-check conducted on 2026-11-05 across reputable computer hardware stores (including Star Tech, Computer Solutions Inc. / CSI, SkyLand BD, TechLand BD, and EIT), observed retail listings for the Dahua DHI-LM27-E341AY 27-Inch QHD IPS 275Hz Gaming Monitor ranged from approximately ৳32,000 to ৳37,000 (with Star Tech listing a promotional price around ৳32,000–৳32,600 against a ৳37,000 regular price), while the saved BiponiBD catalog reference MSRP is ৳32,600. Sampled Bangladesh retailers advertise a 3-year warranty on their listings; however, warranty terms, adapter coverage, and dead-pixel policies on BiponiBD are seller- and distributor-dependent. Always verify exact warranty coverage, stand revision, and port configuration with the fulfilling seller before ordering.