The ASUS MG279Q is a 27-inch, 2560 × 1440 IPS gaming monitor with a maximum refresh rate of 144Hz. Its important catch: FreeSync is documented only from 35Hz to 90Hz, and only over DisplayPort or mini DisplayPort. The 144Hz maximum and the narrower variable-refresh range are separate capabilities.
What the MG279Q offers
ASUS introduced the MG279Q in 2015 with a combination that was notable at the time: QHD resolution, IPS-type viewing characteristics and a 144Hz maximum refresh rate. It is best considered as a legacy gaming monitor rather than judged by launch-era comparisons as if they were current.
| Specification | MG279Q detail |
|---|---|
| Screen and resolution | 27 inches; 2560 × 1440 (WQHD), according to ASUS |
| Pixel density | 109 pixels per inch, according to ASUS’s 2015 launch announcement |
| Maximum refresh rate | Up to 144Hz, according to ASUS |
| FreeSync range | 35–90Hz over DisplayPort or mini DisplayPort, according to the monitor manual |
| Response time | 4ms gray-to-gray, an ASUS specification rather than an independently stated measurement |
| Color coverage | 100% sRGB, according to ASUS’s 2015 launch announcement |
| Inputs and USB | DisplayPort 1.2, mini DisplayPort 1.2, two HDMI/MHL ports and two USB 3.0 ports, according to ASUS |
| Stand and mounting | Height, tilt, swivel and pivot adjustments; quick-release stand and VESA mounting, according to ASUS |
ASUS also advertised 178-degree horizontal and vertical viewing angles and a 100,000,000:1 contrast ratio. Those are manufacturer specifications, not independent measurements. ASUS said the QHD resolution provides up to 77% more on-screen desktop space than standard Full HD; that is a manufacturer comparison, not a guarantee of a particular workflow improvement.
144Hz, FreeSync and the connection you need
144Hz is the maximum refresh rate
The monitor is specified to refresh at up to 144Hz. That figure describes the display’s maximum refresh capability; it does not mean every connection, source device or game will operate at that rate. ASUS notes that compatible video cards are required for 144Hz and FreeSync.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
FreeSync is limited to 35–90Hz
The manual specifies a FreeSync variable-refresh window of 35–90Hz. FreeSync therefore does not extend to the monitor’s full 144Hz ceiling. In his August 25, 2015 review, Tom’s Hardware reviewer Christian Eberle praised the screen’s image quality but identified the 90Hz FreeSync limit as a drawback. His assessment was that the limit was not a problem in his use, while wishing the feature reached 144Hz.
DisplayPort is required for the documented FreeSync feature
The manual lists FreeSync support over DisplayPort and mini DisplayPort only. HDMI/MHL is available for connecting a source, but the manual does not specify FreeSync support over those inputs. Before choosing a cable, check the computer or console’s available output and decide whether you need adaptive sync or simply a video signal. For the documented FreeSync path, use DisplayPort or mini DisplayPort, with any cable or adapter matched to the source output and desired resolution and refresh rate.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Image features and ergonomics
The MG279Q includes ASUS GamePlus crosshair and timer overlays, six GameVisual presets, Ultra Low Blue Light filters and flicker-free technology. Its stand supports height adjustment from 0 to 150mm, tilt from +20° to −5°, swivel from +60° to −60° and a 90-degree clockwise pivot, according to ASUS. The stand can be removed using the quick-release design, and the display supports VESA mounting.
How the 2015 review holds up
Christian Eberle’s Tom’s Hardware review, published August 25, 2015, assessed the MG279Q as a high-quality IPS screen, noting strong color accuracy and contrast in the reviewer’s testing. That is a historical review judgment, not a claim about every unit today. Its comparison with the Acer XB270HU—including a roughly $250 price difference at the time—also belongs to that 2015 market context, not to current shopping decisions.
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Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Should you buy one used today?
Whether a particular MG279Q is worth buying depends on its asking price, condition, panel health, warranty and the alternatives currently available. Current stock, prices and warranty terms have not been established here, so the 2015 review and launch positioning cannot settle today’s value question.
Before buying a used or refurbished unit, check the specific listing and, where possible, test the monitor in person:
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
- Inspect for dead or stuck pixels and uneven backlighting or panel uniformity.
- Test each input you plan to use, including the connection needed for your desired refresh rate or FreeSync.
- Confirm the stand, power supply and any included cables are present if you need them.
- Read the seller’s return terms and establish whether any warranty applies to that exact unit.
- Compare the total price and condition with alternatives using the same criteria: resolution and pixel density, measured image quality, maximum refresh versus adaptive-sync range, supported inputs, response and input-lag testing, ergonomics, warranty and age.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
