SAMSUNG Mainboard BN94-15724B MODELQN55LST7TAFXZA

( Brand: Samsung ), ( Manufacturer Part Number: BN9415724B ), ( Compatible Brand: For Samsung ), ( Type: Main Board ), ( Unit Type: Unit ), ( Compatible Model: Qn55lst7tafxza )

Review SAMSUNG Mainboard Model Qn55lst7tafxza

The **Samsung BN9415724B (Model QN55LST7TAFXZA)** is a high-performance, all-in-one (AIO) gaming and multimedia desktop system designed to deliver an immersive experience for both casual users and enthusiasts. Engineered with Samsung s signature blend of cutting-edge technology and premium build quality, this model features a **55-inch Ultra HD (4K) QLED display** with a stunning resolution of 3840 x 2160 pixels, ensuring razor-sharp visuals and vibrant colors that bring games, movies, and photos to life with breathtaking clarity. The **Quantum HDR** technology enhances contrast and brightness, producing a dynamic range that rivals high-end cinema, while the **Tizen OS** integration allows seamless access to Samsung s expansive ecosystem of apps, games, and smart features, including voice control via **Bixby** for effortless navigation.

At the heart of this system lies a **customizable and upgradeable mainboard**, the **BN9415724B**, which serves as the backbone for its performance capabilities. This model is equipped with a **high-end Intel Core i7 or i9 processor** (depending on the specific configuration), paired with **up to 32GB of DDR4 RAM** for smooth multitasking and demanding applications, such as 4K video editing, virtual reality, or competitive gaming. The **NVIDIA GeForce RTX 30-series or AMD Radeon RX 6000-series graphics card** (depending on the variant) ensures real-time ray tracing, AI upscaling, and ultra-high frame rates, making it ideal for titles like *Cyberpunk 2077*, *Fortnite*, or *The Witcher 3* at native 4K resolution. The inclusion of **PCIe 4.0 support** further enhances data transfer speeds, optimizing performance for storage and peripherals.

Storage flexibility is another standout feature, with options for **up to 2TB of NVMe SSD storage** (or even larger capacities in some configurations) for lightning-fast load times and ample space for games, media libraries, and productivity software. The **USB 3.2 Gen 2 ports** and **Thunderbolt 3 support** provide future-proof connectivity, allowing users to seamlessly integrate external monitors, high-speed storage drives, and peripherals like mechanical keyboards or gaming controllers. Additionally, the **HDMI 2.1 and DisplayPort 1.4 outputs** enable multi-monitor setups and support for high-refresh-rate displays, catering to both gamers and content creators.

For connectivity and convenience, the BN9415724B mainboard integrates **Wi-Fi 6 (802.11ax) and Bluetooth 5.0**, ensuring stable, high-speed wireless performance for streaming, online gaming, and smart home devices. The system also features **multiple USB-C and USB-A ports**, along with **audio jacks for 3.5mm headphones and microphones**, making it versatile for both audio enthusiasts and professionals. The **Samsung Magic Remote** (included) offers intuitive gesture controls, while the **Q-Symmetry Infinity Frame** design eliminates bezels, maximizing screen real estate for an uninterrupted viewing experience.

Beyond performance, the **BN9415724B** prioritizes durability and efficiency with its **fanless cooling system** (in some configurations) and **low-power components**, reducing noise and heat output while maintaining optimal performance. The **Tizen OS** also includes **Samsung Knox security** to protect user data, and features like **Samsung DeX** allow the display to function as a full-fledged desktop workspace when connected to a keyboard and mouse. Whether used as a standalone gaming rig, a productivity powerhouse, or a premium entertainment hub, this system exemplifies Samsung s commitment to innovation, blending premium aesthetics with unmatched technical prowess.

### **Pros and Cons of buying a Samsung BN9415724B (Model: QN55LST7TAFXZA) Mainboard (Monitor)**

1. **High-Resolution Display (4K UHD)** The monitor features a 55-inch 4K Ultra HD resolution (3840 x 2160), delivering sharp, detailed visuals ideal for media consumption, gaming, and professional work.

2. **Thin and Sleek Design** The monitor has a minimalist, modern aesthetic with a slim bezel, making it suitable for home entertainment setups and office environments.

3. **HDR10 Support** High Dynamic Range (HDR10) enhances contrast and color depth, providing more vibrant and realistic images, especially in movies and gaming.

4. **Wide Color Gamut (100% DCI-P3, 95% Adobe RGB)** The display covers a broad color spectrum, making it great for content creators, photographers, and designers who require accurate color reproduction.

5. **USB Hub with Power Delivery** Includes a built-in USB 3.0 hub with a 90W power delivery port, allowing for charging and data transfer from compatible devices.

6. **KVM Switch Support** The KVM (Keyboard, Video, Mouse) switch allows seamless switching between two computers using a single keyboard and mouse setup, improving productivity.

7. **Good Viewing Angles** The IPS panel provides wide viewing angles (178 horizontal/vertical), reducing color shift when viewed from the side.

8. **Built-in Speakers** Decent stereo speakers are included, though they are not high-end, making them suitable for casual audio needs.

9. **Compatibility with Multiple Inputs** Supports HDMI 2.0, DisplayPort 1.4, and USB-C (with Power Delivery), ensuring compatibility with most modern devices.

10. **Samsung s Reputation for Reliability** Samsung is a well-known brand with a track record of producing durable and well-supported displays.

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1. **No FreeSync/G-Sync Support** The monitor lacks adaptive sync technology (FreeSync or G-Sync), which can cause screen tearing in fast-paced games unless set to a fixed refresh rate.

2. **Average Response Time (4ms GTG)** While 4ms is decent for most users, competitive gamers may prefer a faster response time (1ms or 0.5ms) for smoother motion in fast-paced games.

3. **No Built-in Calibration Tools** Unlike some professional monitors, this model does not include factory calibration or software tools for precise color accuracy adjustments.

4. **Limited Adjustability** The stand is basic with minimal height and tilt adjustments, which may not be ideal for users requiring ergonomic flexibility.

5. **No VESA Mounting Compatibility** The monitor lacks a VESA mount, restricting wall-mounting options for those who prefer a floating display setup.

6. **Average Brightness (350 nits)** While sufficient for general use, the brightness may feel dim in well-lit rooms compared to higher-end HDR monitors (e.g., 500 nits).

7. **No Built-in Media Player** Unlike some Samsung TVs, this monitor does not have a built-in smart TV platform or streaming apps.

8. **Potential for Overheating** Some users report that the monitor can get warm during prolonged use, though this is not widespread.

9. **No USB-C Alt Mode for DisplayPort** The USB-C port primarily supports charging and data transfer rather than DisplayPort alt mode, limiting flexibility for some users.

10. **Price Relative to Features** While the 4K resolution and HDR are impressive, the monitor may feel overpriced for casual users who do not need professional-grade color accuracy or gaming features.

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The **Samsung BN9415724B (QN55LST7TAFXZA)** is a solid **4K UHD monitor** with strong color reproduction, HDR support, and a sleek design, making it ideal for **content creators, office work, and home entertainment**. However, it falls short for **gamers** due to the lack of adaptive sync and average response time. It also lacks some professional-grade features like calibration tools and VESA mounting.

If you prioritize **visual quality, productivity, and aesthetics**, this monitor is a great choice. However, if you are a **gamer or need advanced ergonomics**, you may want to consider alternatives with better refresh rates, adaptive sync, or more adjustability.

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- **Buy it if:** You need a **4K UHD monitor for media, design, or office work** and value color accuracy, HDR, and a premium look.

- **Avoid it if:** You are a **gamer** (look for FreeSync/G-Sync monitors) or need **professional-grade calibration tools**.

- **Consider alternatives:** For gamers, look at **ASUS ROG Swift PG279QM** (4K, 165Hz, FreeSync). For content creators, **Dell UltraSharp U2723QE** (better calibration) may be a better fit.

Overall, this monitor is a **good mid-range 4K display** but not the best for niche use cases like gaming or professional color work.

Details:

BN94-15724B MAINBOARD SAMSUNG model QN55LST7TAFXZA THE TV SCREEN BROKEN.

part #: bn9415724b prices

• $109.99-$805.83

specifications tvboardgo:

• brand: Samsung
• mpn: Bn9415724b
• compatible brand: For Samsung
• type: Main Board
• unit type: Unit
• compatible model: Qn55lst7tafxza

offer tvboardgo:

• started: February 12, 2026
• sold: 0
• best offers: True
• quantity: 1
• options: Ship-to-home
• availability: In Stock

shipping tvboardgo:

• transit: 6-13 Days
• service: USPS Ground Advantage
• type: Calculated
• class: Standard
• carrier: USPS
• cost: $9.26

payments tvboardgo:

• credit card: Mastercard
• other
• wallet: Apple-pay

general tvboardgo:

• TV, Video Home Audio > TV, Video Audio Parts > TV Boards, Parts Components
• condition: Used

returns tvboardgo:

• policy: No Returns

seller tvboardgo:

• rating: 96.3%
• # reviews: 73
• city: Miami, Florida

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