ASUS RT-AC86U Router Control Board

( Brand: Asus ), ( Manufacturer Part Number: RT-AC86U ), ( Part Type: Router Control Board )

Review ASUS Router Control Board

The **ASUS RT-AC86U Router Control Board** represents the heart of one of the most powerful and versatile wireless routers in its class, designed to deliver unparalleled performance, flexibility, and reliability for demanding home and small office networks. Engineered with a focus on high-speed connectivity, this control board integrates a **dual-core 1.0 GHz processor** paired with **1 GB of DDR3 RAM**, ensuring seamless multitasking for advanced routing, VPN acceleration, and simultaneous multi-gigabit connections without lag. At its core, the board leverages **ASUS s proprietary AiMesh technology**, enabling seamless mesh networking capabilities that eliminate dead zones by dynamically expanding coverage through compatible ASUS routers, creating a unified, high-performance Wi-Fi ecosystem. The control board also incorporates **ASUSWRT firmware**, a robust and user-friendly interface that combines intuitive controls with deep customization options, allowing users to fine-tune QoS (Quality of Service), bandwidth prioritization, and parental controls with precision.

For wired connectivity, the RT-AC86U s control board supports **four Gigabit Ethernet ports**, two of which are optimized for **multi-gigabit speeds (up to 2.5 Gbps)** via USB 3.0, making it future-proof for next-generation devices like 8K streaming, VR headsets, and high-speed gaming consoles. The board further enhances connectivity with **ASUS s AiProtection security suite**, which integrates **Trend Micro s deep packet inspection (DPI) technology** to block malware, phishing attempts, and intrusive ads in real time, ensuring a safer online experience without sacrificing performance. Additionally, the control board supports **ASUS s AiRadar antenna system**, featuring **four high-gain antennas** that deliver **tri-band wireless performance** with two 2.4 GHz bands and one 5 GHz band maximizing bandwidth allocation and reducing interference for smoother, faster connections across all devices.

Beyond performance, the RT-AC86U s control board is built with **ASUS s commitment to durability and efficiency**, featuring a **low-power consumption design** that extends battery life in portable setups while maintaining peak performance. The board also supports **ASUS s AiDisk and AiCloud features**, enabling seamless cloud storage integration, remote access, and file sharing across devices, making it ideal for users who require both local and remote network management. Whether deployed in a high-density home environment, a small business office, or a tech-savvy household, the RT-AC86U s control board delivers a harmonious blend of speed, security, and smart connectivity, setting a new standard for wireless routers in its category.

### **Pros and Cons of Buying an ASUS RT-AC86U Router Control Board**

The **ASUS RT-AC86U** is a high-end dual-band AC2900 Wi-Fi router known for its performance and advanced features. If you're considering purchasing its **control board** (motherboard) for repair, upgrade, or resale, here s a detailed breakdown of its advantages and drawbacks.

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### **Pros of the ASUS RT-AC86U Control Board**

1. **High Performance and Speed**

The RT-AC86U features a **dual-core 1.7 GHz processor** (Qualcomm Atheros QCA9563) and supports **AC2900 Wi-Fi speeds** (up to 867 Mbps on 5 GHz and 1300 Mbps on 2.4 GHz), making it one of the fastest consumer routers of its time. If you're replacing a faulty board, this ensures reliable high-speed connectivity.

2. **Advanced Wireless Features**

It supports **MU-MIMO (Multi-User Multiple Input Multiple Output)**, **beamforming**, and **802.11ac Wave 2**, which improves efficiency in multi-device environments. These features are still relevant for modern smart homes and gaming setups.

3. **Robust Hardware Build**

The control board is built with **high-quality components**, including **4GB DDR3 RAM** and **128MB flash storage**, which allows for smooth operation even with multiple connected devices. The **ASUS AiProtection** security suite is integrated into the firmware, providing built-in malware and parental controls.

4. **Compatibility with ASUSWRT and Third-Party Firmware**

The RT-AC86U runs on **ASUSWRT**, a stable and feature-rich firmware that supports **VPN passthrough, QoS (Quality of Service), and custom DNS**. It also works well with **DD-WRT** and **OpenWRT** (with some limitations), making it a flexible choice for advanced users.

5. **Good Resale and Repair Market**

Due to its popularity, the RT-AC86U control board has a **strong second-hand market**. Many users upgrade to newer models (like the RT-AX88U), but the AC86U remains in demand for budget-friendly high-performance setups. This makes it a viable option if you're looking to **repair or resell** the board.

6. **USB and LAN Port Flexibility**

The router includes **two USB 3.0 ports** (useful for NAS storage or printers) and **four Gigabit LAN ports**, which are still relevant for wired connections. The **USB 3.0 support** is particularly useful for media streaming or file sharing.

7. **Long-Term Availability of Parts**

ASUS has been producing the RT-AC86U since 2016, and replacement parts (including control boards) are still **relatively easy to find** compared to newer, discontinued models. This reduces the risk of long repair delays.

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### **Cons of the ASUS RT-AC86U Control Board**

1. **Outdated for Modern Standards**

While the RT-AC86U was cutting-edge when released, it **does not support Wi-Fi 6 (802.11ax)**, which is now the industry standard. If you're replacing a board for a **high-density home or office**, a newer router (like the RT-AX88U or RT-AX58U) would be a better long-term investment.

2. **Limited Future-Proofing**

The **1.7 GHz dual-core processor** is now considered **underpowered** compared to modern quad-core or even dual-core Wi-Fi 6 routers. If you plan to keep the router for **5 years**, its performance may become a bottleneck, especially with **4K streaming, VR, or multiple IoT devices**.

3. **ASUSWRT Firmware Limitations**

While ASUSWRT is stable, it **lacks some advanced features** found in third-party firmwares (like DD-WRT or OpenWRT). If you rely on **custom firmware for deep customization**, you may need to compromise or use a different router.

4. **Power Consumption and Heat**

The RT-AC86U **draws more power** than modern Wi-Fi 6 routers (typically **15-20W idle**, rising to **25-30W under load**). This can lead to **higher electricity costs** over time. Additionally, the **heat output** can be higher, potentially reducing the lifespan of components if the router is in a poorly ventilated space.

5. **Deprecated Security Features**

While ASUSWRT includes **AiProtection**, some security protocols (like **WPA3-Personal**) were not fully supported until later firmware updates. If security is a priority, newer routers with **native WPA3 support** are preferable.

6. **Hardware Aging and Reliability Risks**

Being an older model, the **control board may suffer from wear and tear** if the original router was used for many years. Common failure points include:

- **Failed capacitors** (especially on the power supply section).

- **Worn-out Wi-Fi antennas** (if the router was exposed to moisture or physical stress).

- **Firmware corruption** due to outdated updates.

If you're buying a used board, **thorough testing is recommended**.

7. **Limited Expansion Options**

Unlike some enterprise-grade routers, the RT-AC86U **does not support additional PCIe slots or advanced hardware upgrades**. If you need **future expandability**, a newer model with **Wi-Fi 6E or mesh compatibility** would be better.

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### **Conclusion and Recommendation**

#### **When Should You Buy the ASUS RT-AC86U Control Board?**

- **For budget-conscious users** who need **high-speed Wi-Fi (AC2900) without breaking the bank**.

- **For repair or resale purposes**, as it remains a **reliable and sought-after model**.

- **For environments where Wi-Fi 6 is not yet a necessity** (e.g., small homes, offices with few devices).

- **If you prefer ASUSWRT s stability** over custom firmware flexibility.

#### **When Should You Avoid It?**

- **If you need Wi-Fi 6 or Wi-Fi 6E** for future-proofing (e.g., large homes, smart homes with many devices).

- **If power efficiency and low heat output** are critical (modern routers consume less power).

- **If you require advanced customization** (DD-WRT/OpenWRT may not be fully compatible).

- **If the router is already several years old** and shows signs of hardware degradation.

- You re **repairing an existing router** and need a **reliable, high-performance board** at a lower cost.

- You re **reselling** and targeting buyers who prioritize **speed over modern features**.

- You **don t need Wi-Fi 6** and want a **proven, stable router** for basic to moderate use.

- You re **building a new network** and can afford a **Wi-Fi 6 or Wi-Fi 6E router** (e.g., ASUS RT-AX88U, RT-AX58U, or TP-Link Archer AX6000).

- You **plan to keep the router long-term** (5 years), as its performance may become outdated.

- You **need advanced customization** and are willing to risk compatibility issues with third-party firmwares.

- **For Repair/Resale:** ASUS RT-AC68U (AC1900), TP-Link Archer C7 (AC1750) slightly older but still functional.

- **For New Purchases:** ASUS RT-AX88U (Wi-Fi 6, dual-band), TP-Link Archer AX6000 (tri-band Wi-Fi 6), or Netgear Nighthawk RAX120 (Wi-Fi 6E).

If you're **certain about the RT-AC86U**, ensure the control board is **tested for functionality** (check for **firmware compatibility, Wi-Fi strength, and stability**) before finalizing the purchase.

Details:

This control board is an essential component for those looking to maintain the superior functionality of their Asus RT-AC86U router. Visible Number: WG9117AAC34-ACU, RT-AC86U REV 1.50, Part. We demand quality. Whatever you want.

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part #: rtac86u prices

• $19.99-$55.00

specifications tvboardgo:

• brand: Asus
• mpn: Rt-ac86u
• part type: Router Control Board

general tvboardgo:

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

shipping tvboardgo:

• service: USPS First Class
• carrier: USPS
• type: Calculated
• class: Standard
• cost: $0.00
• transit: 2-6 Days

returns tvboardgo:

• time: 30 Days
• paid by: Buyer
• method: Money back
• policy: Returns Accepted

payments tvboardgo:

• wallet: Google-pay
• other
• credit card: Discover

seller tvboardgo:

• rating: 99.1%
• # reviews: 96903
• city: Burnsville, Minnesota

offer tvboardgo:

• sold: 0
• options: Ship-to-home
• quantity: 1
• started: April 29, 2026
• availability: In Stock

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