Dahua DHI-LM27-E341A 27-Inch QHD (2560×1440) 240Hz Fast IPS Gaming Monitor — Complete Technical Buyer Guide
The Dahua DHI-LM27-E341A (listed in Dahua global consumer documentation as the LM27-E341A) is a 27-inch flat gaming and multimedia monitor designed for high-refresh-rate PC gaming, daily desktop multitasking, and color-aware visual work. Combining a native QHD (2560 × 1440) resolution with a 240Hz refresh rate on an E-LED backlit Fast IPS liquid-crystal panel, the DHI-LM27-E341A delivers both high spatial detail and rapid frame updates. Official Dahua specifications rate the panel at 0.5ms (OD — Overdrive) and 1ms (MPRT — Moving Picture Response Time), paired with a 95% DCI-P3 color gamut, 300 cd/m² (max) luminance, 1000:1 static contrast, Adaptive Sync support, and a four-input digital video bay comprising 2 × DisplayPort 1.4, 2 × HDMI 2.0, and 1 × Audio out.
1. 27-Inch QHD (2560 × 1440) Resolution & Pixel Architecture
Across its 27-inch diagonal active area and standard 16:9 widescreen aspect ratio, the 2560 (H) × 1440 (V) pixel array produces 3,686,400 individual pixels—representing 77.7% more pixel density than a 27-inch Full HD (1920 × 1080) display. At approximately 108.79 pixels per inch (PPI), this 27-inch QHD geometry balances fine visual definition with practical system performance:
- Sharp Image Definition in Games: Compared to 27-inch 1080p monitors where individual pixel structure can appear coarse at normal desk seating distances, the 2560 × 1440 grid renders cleaner object edges, distant map geometry, and HUD typography.
- Comfortable Desktop Workspace at 100% OS Scaling: In desktop operating systems, QHD on a 27-inch panel operates cleanly at 100% native scaling without requiring fractional UI magnification. Users can arrange side-by-side code editors, browser windows, spreadsheets, and timeline panels with ample workspace.
- Balanced Rendering Demand at 240Hz: Driving 3.68 million pixels per frame at high refresh rates places a significantly lower rendering burden on a desktop GPU than 4K UHD (8.29 million pixels), making it practical to sustain high frame rates in competitive and fast-paced titles.
2. 240Hz Refresh Rate, 0.5ms (OD) / 1ms (MPRT) Response & Adaptive Sync
The core motion specification of the Dahua DHI-LM27-E341A is its 240Hz refresh rate combined with a Fast IPS panel architecture. At 240Hz, the display updates once every 4.17 milliseconds (versus 16.67 ms at 60Hz and 6.94 ms at 144Hz). The official Dahua datasheet publishes two response time specifications for this model:
- 0.5ms (OD — Overdrive): Reflects accelerated liquid-crystal pixel transitions when panel overdrive is active, helping reduce trailing smear behind fast-moving objects.
- 1ms (MPRT — Moving Picture Response Time): Measures perceived motion persistence across rapid horizontal and vertical camera movement.
- Adaptive Sync Variable Refresh Rate: Official Dahua documentation specifies Adaptive Sync to synchronize the monitor's refresh cycle with the frame output of the connected graphics source, helping reduce screen tearing and frame-pacing stutter. Note that while several local Bangladesh retail listings label this feature as in their specification tables, the official Dahua datasheet specifically states Adaptive Sync without listing formal AMD FreeSync tier certification or NVIDIA G-Sync Compatible certification; buyers should verify variable refresh rate behavior with their specific GPU and driver configuration.
3. Optical Performance: 95% DCI-P3 Color Gamut, 300 cd/m² (Max) Brightness & Haze 25% Coating
Built on an In-Plane Switching (Fast IPS) panel with an E-LED (Edge-Lit LED) backlight unit, the DHI-LM27-E341A maintains consistent color and contrast across wide 178° (H) / 178° (V) viewing angles. Reviewing the official Dahua datasheet against local retail specification tables clarifies two important optical ratings:
- Official 95% DCI-P3 Color Gamut (vs. Retailer 95% NTSC Listings): The official Dahua consumer product page and datasheet for the DHI-LM27-E341A (LM27-E341A) specify a wide color gamut of 95% DCI-P3. Some Bangladesh retailer specification tables list due to a retail template discrepancy, so buyers consulting catalog attributes should note that 95% DCI-P3 is the manufacturer-published specification.
- 300 cd/m² (Max) Brightness & 1000:1 Static Contrast Ratio: The official Dahua datasheet specifies brightness at 300 cd/m² (max)—correcting local retail sheets that label it as —alongside a native 1000:1 contrast ratio. Because the E-LED backlight operates without a multi-zone local dimming array and peaks at 300 cd/m² (max), the display is designed for standard dynamic range (SDR) wide-color gaming and desktop use rather than high-luminance hardware HDR reproduction.
- Anti-Glare Surface Treatment (Haze 25%, 3H): The front panel uses a matte anti-glare polarizer rated at Haze 25% with a 3H hard coating, reducing ambient room reflections while protecting the outer screen surface against minor everyday abrasion.
4. Connectivity: 2 × DisplayPort 1.4, 2 × HDMI 2.0 & Audio Out
The downward-facing rear input bay on the Dahua DHI-LM27-E341A provides four digital video inputs and one analog audio output:
- 2 × DisplayPort 1.4 Inputs (DP Cable Included): Two full-size DisplayPort 1.4 connectors allow simultaneous connection of two DisplayPort-equipped systems. Official Dahua box-contents documentation confirms that 1 × DisplayPort (DP) cable is included in the factory package.
- 2 × HDMI 2.0 Inputs: Two HDMI 2.0 ports accommodate additional desktops, laptops, or media devices without frequent cable swapping. Note that the official Dahua datasheet lists the ports as and a maximum monitor refresh rate of , without publishing a separate per-interface resolution/refresh timing table for HDMI 2.0 versus DisplayPort 1.4.
- 1 × Audio Out (3.5mm Stereo Jack — No Built-in Speakers): A rear audio-out port passes audio received over DisplayPort or HDMI to external headphones or powered speakers. The official specification sheet does not list built-in internal speakers or USB hub ports.
5. Mechanical Design, Dimensions, Weight & Stand Ergonomics Qualification
Visual inspection of the official gallery images confirms a 3-sided narrow-bezel front housing—with official Dahua mechanical drawings specifying top, left, and right bezel widths of 8.4 mm to 9.07 mm and a bottom bezel width of 23.0 mm featuring a centered Dahua logo. Five physical OSD control buttons sit along the bottom-right underside of the bezel. The rear casing features a matte-black octagonal stepped profile with perimeter ventilation slots, a central 100 × 100 mm VESA mounting recess, and a vertical stand neck with a rectangular cable pass-through opening over an open-center flat base.
Dimensions, Weight & Stand Adjustment Caveat:
- Product & Package Dimensions: Official Dahua datasheet dimensions without the wall-mount bracket are 614.3 mm × 366.8 mm × 57.2 mm (), and outer package dimensions are 861 mm × 460 mm × 170 mm ().
- Net Weight vs. Gross Weight: The official Dahua datasheet specifies a Net Weight of 4.97 kg (10.96 lb) and a Gross (packaged) Weight of 6.83 kg (15.06 lb). Several local retail listings copied the gross package weight into the general weight field without labeling it as gross weight.
- Stand Tilt vs. Retailer Height Adjustment Claims: In the mechanical design table of the official Dahua DHI-LM27-E341A datasheet, only Tilt: -5° ± 2° / 20° ± 2° and VESA Mount: 100 × 100 mm are specified, and the official product images depict a fixed-column neck with a cable slot. However, some Bangladesh retailer specification tables (including the Star Tech source scrape) list . Because the manufacturer datasheet does not specify height, swivel, or pivot adjustment for the standard stand, buyers who require height adjustment should verify the exact included stand revision with the seller prior to purchase or use the 100 × 100 mm VESA mount with an aftermarket monitor arm.
6. Power Supply, Operating Environment & Eye-Care Features
According to the official Dahua DHI-LM27-E341A datasheet, the monitor is powered via an included external power adapter rated at 12 VDC, 4 A. Manufacturer-published power consumption figures are:
- Basic Power Consumption: 25 W
- Typical Power Consumption: 25.8 W
- Maximum Power Consumption: 32.6 W
- Standby Power Consumption: < 0.5 W
For visual comfort during prolonged viewing sessions, Dahua documentation highlights Low Blue Light software control and flicker-free backlight operation, alongside a rated 30,000-hour panel lifespan. Environmental operating specifications are rated at 0°C to +40°C (+32°F to +104°F) with 10%–80% RH operating humidity (and -20°C to +60°C, 5%–90% RH storage tolerances). Listed regulatory certifications include CE EMC, CE LVD, CE ERP, and CB.
7. Observed Bangladesh Retail Snapshots, Box Contents & Seller Warranty Notes
In the dated Bangladesh retail cross-check conducted on 2026-11-05, observed retailer listings for the Dahua DHI-LM27-E341A included ৳33,500 (discounted promotional listing) and ৳36,500 (regular listing price) at Star Tech Bangladesh, and ৳36,000 at Ultra Technology BD, while the BiponiBD catalog record carries a reference MSRP of ৳36,500 (with active seller offers at the time of the snapshot). Standard factory box contents specified by Dahua include the Monitor, Power Adapter (12 VDC, 4 A), DisplayPort (DP) Cable, User Manual, and Legal/Regulatory Information. While sampled Bangladesh retailers (Star Tech, Ryans Computers, TechLand BD, and Ultra Technology) advertise a 3-year retailer/distributor warranty on their respective listings, warranty duration and claim handling on BiponiBD are seller-dependent and not specified in the global Dahua datasheet; buyers should confirm the exact warranty terms and stock status with the fulfilling seller before ordering.
