MSI MAG 321CUP QD-OLED

Overview

The MSI MAG 321CUP QD-OLED is a 31.5-inch curved gaming monitor featuring a Quantum Dot OLED panel with a native 3840 x 2160 4K resolution. Designed to deliver immersive visuals with its 1700R curvature, it offers a fast 165 Hz refresh rate and an ultra-low 0.03 ms response time, making it ideal for fast-paced gaming and detailed creative work. The monitor supports NVIDIA G-Sync for smooth gameplay and provides exceptional color accuracy and contrast for both gaming and professional use.

Key features

• Quantum Dot OLED technology ensures vibrant colors and deep blacks for a visually rich experience.
• 165 Hz refresh rate combined with a 0.03 ms response time delivers crisp and fluid motion in fast-action games.
• NVIDIA G-Sync compatibility reduces screen tearing and stuttering by synchronizing the display with the GPU.
• Factory calibration maintains color accuracy with Delta E below 2 and covers 99% of the DCI-P3 color gamut.
• VESA DisplayHDR True Black 400 certification offers high dynamic range with a 1,500,000:1 contrast ratio and peak brightness up to 1000 nits.
• Multiple connectivity options including two HDMI 2.1 ports for modern consoles, DisplayPort 1.4 for high refresh rates on PC, and USB-C with 15 W power delivery for convenient device charging.
• Ergonomic stand with height, tilt, and swivel adjustments supports comfortable viewing during extended sessions.
• OLED Care 2.0 technology helps prevent image retention, extending the lifespan of the display.

Key specs

• Display size: 31.5 inches
• Panel type: Quantum Dot OLED
• Resolution: 3840 x 2160 (4K UHD)
• Curvature: 1700R
• Refresh rate: 165 Hz
• Response time: 0.03 ms
• Contrast ratio: 1,500,000:1
• Peak brightness: up to 1000 nits
• Color gamut: 99% DCI-P3
• Color accuracy: Delta E = 2 (factory calibrated)
• HDR certification: VESA DisplayHDR True Black 400
• Ports: 2x HDMI 2.1, 1x DisplayPort 1.4, 1x USB-C with 15 W power delivery

Connectivity and compatibility

This monitor supports a wide range of devices thanks to its versatile input options. Two HDMI 2.1 ports allow seamless connection to the latest gaming consoles at full 4K 120 Hz, while the DisplayPort 1.4 input unlocks the full 165 Hz refresh rate for compatible PCs. The USB-C port not only transmits video and data but also provides 15 watts of power delivery, making it convenient for charging laptops or tablets during use.

Performance and reliability

The combination of Quantum Dot OLED technology and factory calibration ensures colors are reproduced with precision, making this monitor suitable for both gaming and professional color-critical tasks like photo editing and HDR grading. The ultra-fast response time and high refresh rate reduce motion blur and input lag, enhancing competitive gaming performance. Additionally, MSI’s OLED Care 2.0 routines actively minimize the risk of burn-in, preserving image quality over time.

Ideal uses and environments

This curved 4K monitor fits well in setups where immersive visuals and color accuracy are priorities. It is a strong choice for gamers who demand smooth, tear-free gameplay and quick response times, as well as creative professionals who require precise color representation. The ergonomic stand and versatile connectivity make it suitable for home offices, gaming rooms, and multimedia workstations where comfort and flexibility are important.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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