ASUS ROG Strix XG309CM 29.5" WFHD 220Hz Fast IPS Gaming Monitor
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Technical Specifications
| Attribute | Detailed Specification |
| Product Full Name | ASUS ROG Strix XG309CM 29.5" WFHD 220Hz Fast IPS Gaming Monitor |
| Product Model / SKU | ROG Strix XG309CM |
| Brand / Manufacturer | ASUS ROG (Republic of Gamers) |
| Product Series | ASUS ROG Strix Series (Ultrawide Esports & High-Framerate Gaming Displays) |
| Chassis Colorway & Finish | Matte Black with ROG Cyberpunk Textures & ASUS Aura Sync Rear Ambient Lighting |
| Screen Size | 29.5-Inch (74.93 cm) Diagonal Ultrawide Flat Panel (21:9 Aspect Ratio) |
| Panel Type | Fast IPS (Liquid Crystals Switch up to 4× Faster than Conventional IPS) |
| Display Surface | Non-Glare / Anti-Glare Hard Coating |
| Native Resolution | WFHD 1080p Ultrawide (2560 × 1080 Pixels) |
| Pixel Pitch / PPI | 0.270 mm / Approx. 94 PPI |
| Display Viewing Area (H × V) | 690.43 mm × 291.28 mm |
| Refresh Rate | Up to 220 Hz Overclocked Refresh Rate (VRR: 48 Hz – 220 Hz via DP/USB-C; Up to 200 Hz via HDMI) |
| Response Time | 1 ms GTG (Gray-to-Gray) |
| Brightness (Typical) | 300 cd/m² (nits) |
| Static Contrast Ratio | 1000:1 (Typical) |
| Dynamic Contrast Ratio | 100,000,000:1 (ASUS Smart Contrast Ratio - ASCR) |
| Viewing Angles | 178° Horizontal / 178° Vertical (CR≥10) |
| Display Colors & Bit Depth | 16.7 Million Colors (8-bit) |
| Color Gamut Coverage | 110% sRGB Standard Color Space |
| Color Accuracy | Factory Pre-Calibrated Delta E < 2 |
| High Dynamic Range (HDR) | HDR10 Signal Decoding Supported |
| Motion Blur Reduction | Extreme Low Motion Blur (ELMB) & ELMB Sync (Simultaneous Backlight Strobing + VRR) |
| Variable Refresh Rate (VRR) | AMD FreeSync™ Premium & NVIDIA® G-SYNC® Compatible |
| Built-in KVM Switch | Integrated Hardware KVM Switch (Control two connected systems using one mouse and keyboard) |
| Gaming Enhancements | ROG GamePlus Suite (Crosshairs, Timer, FPS Counter, Display Alignment, Stopwatch), GameVisual (8 Presets), Shadow Boost, GameFast Input Technology |
| Eye Care & Health Features | TÃœV Rheinland-Certified Flicker-Free Backlighting & Hardware Ultra-Low Blue Light Technology |
| Display Software Support | ASUS DisplayWidget (Quick OSD tuning and preset switching directly via Windows interface) |
| Aura Sync Lighting | Integrated ASUS Aura Sync RGB Lighting on Rear Chassis Logo |
| Streaming / Mounting Socket | Standard 1/4"-20 Threaded Tripod Socket atop the stand column for webcams or compact ring lights |
| Video Connectivity | 1 × USB Type-C (Supports DisplayPort Alt Mode, USB Upstream Data, and 15W Power Delivery) 1 × DisplayPort 1.2 (Supports 2560×1080 @ 220Hz OC) 1 × HDMI 2.0 (Supports 2560×1080 @ 200Hz OC) |
| USB Hub & Peripherals | 2 × USB 3.2 Gen 1 Type-A Downstream Ports (5Gbps) |
| Audio Configuration | Built-in Dual Stereo Speakers (2 × 2W RMS) + 1 × 3.5 mm Audio Headphone Out Jack |
| Stand & Ergonomics | • Height Adjustment: 0 to 110 mm • Tilt Angle: -5° Forward to +20° Backward • Swivel Angle: -25° to +25° • Pivot / Rotation: None (Ultrawide Flat Format) |
| VESA Wall Mounting | VESA Standard 100 × 100 mm Pattern Compatible |
| Kensington Security | Integrated Kensington Lock Slot |
| Power Consumption | Active Power On: <28W; Power Saving Mode: <0.5W; Standby / Off: <0.3W |
| Dimensions (with Stand) | 707.3 mm × 486.1 mm × 264.9 mm (27.85" × 19.14" × 10.43") |
| Dimensions (without Stand) | 707.3 mm × 320.7 mm × 73.8 mm (27.85" × 12.63" × 2.91") |
| Product Weight | Approx. 7.5 kg (16.53 lbs) with Stand / Approx. 4.56 kg (10.05 lbs) Panel Only |
| Package Contents | 1 × ASUS ROG Strix XG309CM Monitor 1 × Stand Base & Neck Riser 1 × DisplayPort Cable 1 × HDMI Cable 1 × USB Type-C Cable 1 × USB 3.0 Type-A to Type-B Upstream Cable 1 × Power Adapter & Power Cord 1 × ROG Sticker Sheet & Pouch 1 × Quick Start Guide & Warranty Documentation |
| Warranty Policy | 3 Years Official ASUS ROG Limited Manufacturer / Replacement Warranty |
Product Description
Featuring a 21:9 aspect ratio in a flat panel format, the monitor delivers 33% more horizontal screen space than traditional 16:9 displays, expanding in-game field of view in tactical shooters, MOBAs, and racing titles while providing ample space to arrange side-by-side editing and streaming windows without a secondary screen.
Overclocked up to 220Hz over DisplayPort 1.2 and USB Type-C, the monitor maintains clear motion definition and low input latency during rapid camera movements. With factory pre-calibrated color accuracy ($\Delta E < 2$), 110% sRGB color gamut coverage, and HDR10 signal decoding, the panel preserves vibrant saturation, natural skin tones, and consistent contrast across wide 178-degree viewing angles.
To eliminate motion blur and screen tearing concurrently, the XG309CM features ASUS Extreme Low Motion Blur Sync (ELMB Sync). Gamers benefit from crisp target tracking without dealing with the visual stutter or screen tearing common on standard displays. ASUS Variable Overdrive dynamically modulates overdrive curves across changing framerates to keep gameplay free of overshoot haloing, while ASUS Shadow Boost brightens dark scene details without washing out bright daylight highlights.
The XG309CM also serves as an all-in-one desktop command hub. It features an integrated hardware KVM switch, enabling users to seamlessly control two separate PCs or a gaming desktop and a connected work laptop using a single keyboard and mouse. sup class="superscript" data-turn-source-index="10"> sup class="superscript" data-turn-source-index="11"> Equipped with DisplayPort 1.2, HDMI 2.0, dual 2W stereo speakers, customizable Aura Sync RGB lighting, and an official 3-year warranty, the ASUS ROG Strix XG309CM provides an adaptable, high-velocity ultrawide gaming and productivity setup.
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