Best ASUS E-Atx Motherboards in 2026: 5 Picks

Quick picks

The best fit for you

• You need maximum memory capacity for Threadripper workstations ASUS Prime Threadripper TR4 E-ATX Motherboard It supports DDR4 memory and offers extensive storage expansion for high-end desktop tasks.
• You want premium connectivity for 12th Gen Intel gaming ASUS ROG Maximus Z690 E-ATX Motherboard It features Wi-Fi 6E, 2.5GbE Ethernet, and PCIe 5.0 for high-speed networking.
• You seek the latest AM5 platform with Wi-Fi 7 ASUS ROG Crosshair AM5 E-ATX Motherboard It provides Wi-Fi 7 and PCIe 5.0 support for modern AM5 builds.
• You require dual 10GbE networking for Threadripper PRO systems ASUS Pro WS WRX80E-SAGE SE WiFi II It includes dual 10GbE ports and R-DIMM support for professional workstation builds.
• You want AI-ready features with Wi-Fi 7 for Intel ASUS ROG Maximus Z890 Extreme E-ATX Motherboard It offers Wi-Fi 7 and modern connectivity tailored for Intel Core Ultra processors.

Our 5 picks

1 Best overall

ASUS Prime Threadripper TR4 E-ATX Motherboard

Best for: AMD Threadripper workstations

Form Factor

E-ATX (what this guide is about)

CPU Socket

TR4

Chipset

X399

Memory Type

DDR4

Series

Ryzen Threadripper

Dimensions

12 × 1 × 10.1 inches

View on Amazon: ASUS Prime Threadripper TR4 E-ATX Motherboard Affiliate link

The ASUS PRIME X399-A is an Extended ATX motherboard built for AMD Ryzen Threadripper TR4 processors. It supports up to 128GB of DDR4 memory and features dual M.2 slots alongside a front-panel U.2 port. The board includes 8-channel HD audio and AURA Sync RGB lighting. It suits users needing a stable platform for high-end desktop computing with robust expansion options.

Pros

• Supports up to 128GB of DDR4 memory
• Includes dual NVMe M.2 drives and front side U.2 port
• Features 8-channel HD audio with S1220A codec
• Patent-pending Safe Slot for secure GPU installation

Cons

• Uses older TR4 socket and DDR4 memory
• Lacks modern connectivity like USB 3.1 Gen2 Type-C
• No WiFi or Bluetooth mentioned in specifications

Good fit if

• You are building a workstation with AMD Threadripper
• You need extensive storage via M.2 and U.2
• You prefer stable HEDT performance over latest features

Skip if

• You require the latest AMD AM5 socket
• You need built-in WiFi or Bluetooth
• You are using Intel processors

Verdict: The ASUS PRIME X399-A E-ATX fits Threadripper builders who prioritize memory capacity and storage expansion over modern connectivity. It offers a solid foundation for high-end desktop tasks without the premium features of newer boards.

2 Best budget

ASUS ROG Maximus Z690 E-ATX Motherboard

Best for: high-end 12th Gen Intel gaming builds

Form Factor

E-ATX (what this guide is about)

CPU Socket

LGA 1700

Chipset

Z690

Memory Type

DDR5

PCIe Version

PCIe 5.0

M.2 Slots

5

View on Amazon: ASUS ROG Maximus Z690 E-ATX Motherboard Affiliate link

The ASUS ROG Maximus Z690 Extreme is an E-ATX motherboard built for 12th Gen Intel Core processors on the LGA 1700 socket. It supports DDR5 memory and PCIe 5.0 for high-speed data transfer. The board features a robust 24+1 power phase design and includes Wi-Fi 6E connectivity. It also offers Marvell AQtion 10Gb and Intel 2.5Gb Ethernet ports. This setup suits users who need extensive thermal management and premium networking options.

Pros

• 24+1 power stages rated for 105 A
• Supports DDR5 memory and PCIe 5.0
• Onboard Wi-Fi 6E and 10Gb Ethernet
• Five M.2 slots with dedicated heatsinks

Cons

• E-ATX form factor requires a large case
• Limited to 64 GB maximum RAM capacity
• Heavy build at 2.2 pounds

Good fit if

• You are building a high-end gaming PC with 12th Gen Intel CPUs
• You need 10Gb Ethernet for fast local network transfers
• You have a large case to accommodate the E-ATX dimensions

Skip if

• You prefer smaller motherboards like ATX or Micro-ATX
• You are using older DDR4 memory modules
• You need more than 64 GB of RAM

Verdict: The ASUS ROG Maximus Z690 Extreme E-ATX delivers premium power delivery and networking for enthusiasts using 12th Gen Intel processors. It is ideal for users with large cases who prioritize high-speed connectivity and robust thermal solutions.

3 Best premium

ASUS ROG Crosshair AM5 E-ATX Motherboard

Best for: high-end AM5 workstations and gaming PCs

Form Factor

E-ATX (what this guide is about)

CPU Socket

AM5

Chipset

AMD X870E

Memory Type

DDR5

PCIe Version

PCIe 5.0

M.2 Slots

5

View on Amazon: ASUS ROG Crosshair AM5 E-ATX Motherboard Affiliate link

This E-ATX motherboard supports AMD AM5 processors and DDR5 memory. It features a 20+2+2 power stage configuration and PCIe 5.0 connectivity. The board includes Wi-Fi 7 and dual 10Gb Ethernet ports. You get five M.2 slots for storage. It suits users who need high-end performance and extensive expansion options for demanding workloads.

Pros

• 20+2+2 power stages with 110A ratings
• Five M.2 slots including PCIe 5.0 support
• Wi-Fi 7 and 10Gb Ethernet connectivity
• Dual USB4 Type-C ports

Cons

• Large E-ATX form factor requires spacious cases
• Heavy build at 6.69 pounds
• Higher price point than mid-range alternatives

Good fit if

• You need maximum storage expansion with five M.2 slots
• You require 10Gb Ethernet for fast network transfers
• You are building a high-end AM5 gaming or workstation PC

Skip if

• You have a small form factor case
• You are on a tight budget
• You prefer a more compact motherboard size

Verdict: ASUS ROG Crosshair X870E Extreme delivers robust power and connectivity for AM5 builds. It is ideal for users who prioritize expansion and networking speed over compactness.

4 Also great

ASUS Pro WS WRX80E-SAGE SE WiFi II

Best for: Threadripper PRO workstations with dual 10GbE

Form Factor

E-ATX (what this guide is about)

CPU Socket

sWRX8

Memory Type

R-DIMM

PCIe Version

PCIe 4.0

M.2 Slots

3

Wi-Fi Standard

Wi-Fi 6E

View on Amazon: ASUS Pro WS WRX80E-SAGE SE WiFi II Affiliate link

This Extended-ATX workstation board targets AMD Threadripper PRO CPUs via the sWRX8 socket. It includes 16 power stages and R-DIMM memory support for heavy workloads. Connectivity features dual 10Gb Ethernet and Wi-Fi 6E. You get three M.2 slots plus a dedicated HYPER M.2 card. The ASMB9-iKVM chip allows remote management. It is built for 24/7 stability in professional environments.

Pros

• sWRX8 socket for AMD Threadripper PRO processors
• Dual 10Gb Ethernet ports for fast networking
• 16 power stages for stable performance
• ASMB9-iKVM for out-of-band remote management
• Three M.2 slots plus HYPER M.2 card

Cons

• Large 14.9-inch length requires spacious cases
• Heavy 11.3-pound build adds chassis weight
• R-DIMM memory is less common than DDR5

Good fit if

• You need Threadripper PRO workstation performance
• You require dual 10Gb Ethernet connectivity
• You want remote IPMI management capabilities

Skip if

• You prefer consumer-grade DDR5 memory
• You have a small form factor case
• You do not need Threadripper PRO CPUs

Verdict: ASUS Pro WS WRX80E-SAGE SE WiFi II serves professionals needing Threadripper PRO power and dual 10GbE networking. Its large size and R-DIMM support limit it to specific workstation builds.

5 Also great

ASUS ROG Maximus Z890 Extreme E-ATX Motherboard

Best for: Intel Core Ultra AI PC builds in large cases

Form Factor

E-ATX (what this guide is about)

CPU Socket

LGA 1851

Chipset

Z890

Memory Type

DDR5

M.2 Slots

4

Wi-Fi Standard

Wi-Fi 7

View on Amazon: ASUS ROG Maximus Z890 Extreme E-ATX Motherboard Affiliate link

This E-ATX motherboard supports Intel Core Ultra Processors via the LGA 1851 socket. It features a robust 24+2+1+2 power stage configuration and Wi-Fi 7 connectivity. The board includes four M.2 slots and DDR5 memory support. It targets users building advanced AI PCs who need extensive connectivity and high-end power delivery for demanding applications.

Pros

• LGA 1851 socket for Intel Core Ultra series 2 processors
• 24+2+1+2 power stages with ProCool II connectors
• Wi-Fi 7 and 10G Ethernet options
• Four M.2 slots for storage expansion
• 5-inch LCD screen on the I/O panel

Cons

• Large 15-inch length requires a spacious case
• Heavy 8-pound build adds significant weight
• Only four M.2 slots compared to six on other models

Good fit if

• You are building a high-end AI PC with Intel Core Ultra CPUs
• You need Wi-Fi 7 and 10G Ethernet connectivity
• You have a large case that fits 15-inch motherboards

Skip if

• You require more than four M.2 storage slots
• You are using a smaller ATX or micro-ATX case
• You are building with older LGA 1700 processors

Verdict: ASUS ROG Maximus Z890 Extreme offers powerful power delivery and modern connectivity for Intel Core Ultra builds. It suits users with large cases who prioritize Wi-Fi 7 and AI-ready features over maximum M.2 slot count.

Specifications side by side

How to choose the right E-ATX motherboard

1. Check physical dimensions

   E-ATX boards vary significantly in size. The ASUS Pro WS WRX80E-SAGE SE WiFi II measures 14.3 by 14.9 inches, which is much larger than standard E-ATX boards. You must verify your case supports these extended dimensions before purchasing. A board like the ASUS Prime Threadripper TR4 is 12 by 10.1 inches, fitting more common large cases. Measure your internal space carefully to ensure proper fit and airflow clearance for your components.

2. Match CPU socket type

   The motherboard socket must match your processor exactly. You cannot mix sockets. The ASUS ROG Crosshair AM5 requires an AM5 CPU, while the ASUS ROG Maximus Z690 uses LGA 1700. The ASUS Prime Threadripper TR4 is built for AMD Threadripper TR4 sockets. Verify your processor model and socket type before buying. Installing an incompatible CPU will prevent the system from booting. This is a critical compatibility check that determines the entire platform.

3. Select memory standard

   Motherboards support either DDR4 or DDR5 memory, not both. The ASUS Prime Threadripper TR4 uses DDR4, offering high capacity options for workstations. In contrast, the ASUS ROG Maximus Z690 and ROG Crosshair AM5 require DDR5 modules. You must buy the correct memory type for your board. Mixing standards is impossible. Check the specifications to ensure your existing RAM or new purchases align with the motherboard's supported memory generation for proper system operation.

4. Evaluate network speed

   Networking capabilities differ across models. The ASUS Pro WS WRX80E-SAGE SE WiFi II includes dual 10GbE ports for professional workstation speeds. The ASUS ROG Maximus Z690 offers 2.5GbE Ethernet and Wi-Fi 6E. The ASUS ROG Crosshair AM5 provides Wi-Fi 7 for future-proofing. Choose based on your network infrastructure. High-speed Ethernet benefits data-heavy workflows, while advanced Wi-Fi helps wireless gaming setups. Match the connectivity to your home or office network capabilities.

5. Consider PCIe version

   PCIe versions affect storage and GPU speeds. The ASUS ROG Crosshair AM5 and ASUS ROG Maximus Z690 both support PCIe 5.0. This allows for faster data transfer rates with compatible components. Older boards like the ASUS Prime Threadripper TR4 may not support the latest PCIe standards. If you plan to use next-generation SSDs or GPUs, verify the PCIe version. This spec ensures your high-speed components can operate at their maximum potential without bottlenecking.

Frequently asked questions

See also

• best ASUS motherboards under 200
• best ASUS AM5 motherboards
• best ASUS ATX PC cases
• opsfalcon atx 24 pin motherboard review