ASUS Prime Z370-A II LGA 1151 ATX Motherboard

ASUS Prime Z370-A II LGA 1151 ATX Motherboard

ASUS Prime Z370-A II LGA 1151 ATX Motherboard

B&H # ASPRIMZ370A2 MFR # PRIME Z370-A II
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Product Highlights

  • ATX Form Factor
  • Intel Z370 Chipset
  • LGA 1151 Socket
  • 4 x Dual-Channel DDR4-4000 (OC)
  • 6 x SATA III & 2 x M.2 Socket 3
  • 3 x PCIe 3.0/2.0 x16
  • 4 x PCIe 3.0/2.0 x1
  • Realtek S1220A 8-Channel HD Audio Codec
  • Intel i219V Gigabit LAN Controller
  • 2-Way NVIDIA SLI & 3-Way AMD CrossFireX
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ASUS PRIME Z370-A II overview

  • 1Description

Powered exclusively by 8th Generation Intel Core processors, the Prime Z370-A II LGA 1151 ATX Motherboard from ASUS maximizes connectivity and speed with dual M.2 slots, 10 Gb/s USB 3.1 Gen 2 connectivity, Thunderbolt 3 support, and Intel Optane Memory compatibility. It provides a solid foundation for your first build, plus the flexibility for growth, all of which are backed by automated system tuning, cooling controls, onboard audio, and support for the ASUS Fan Extension Card. This motherboard is designed to fit in ATX sized cases, supports the LGA 1151 socket, the Intel Z370 chipset, and is compatible with Windows 10 (64-bit).

The ATX form factor of the Prime Z370-A II can support up to 64GB of DDR4 RAM over four dual-channel slots, or 16GB per slot at speeds of 4000 (OC), 3866 (OC), 3733 (OC), 3600 (OC), 3466 (OC), 3400 (OC), 3333 (OC), 3300 (OC), 3200 (OC), 3000 (OC), 2800 (OC), 2666 (OC), 2400 (OC), and 2133 MHz non-ECC unbuffered memory. For storage, there are six SATA III 6 Gb/s ports and two M.2 Socket 3, with M key, one of which supports type 2242, 2260, 2280, and 22110 SATA and PCIe 3.0 x4 SSDs, while the other supports type 2242, 2260, and 2280 PCIe SSDs.

There is also one USB 3.1 Gen 2 Type-C port (rear panel), one USB 3.1 Gen 2 Type-A port (rear panel), two USB 3.1 Gen 1 Type-A ports (rear panel), two USB 2.0 Type-A ports (rear panel), two USB 3.1 Gen 1 connectors (mid-board) that support four additional 19-pin USB 3.1 Gen 1 ports, and two USB 2.0 connectors (mid-board) that support an additional four USB 2.0 ports. For those looking to expand their system using PCIe, there are two PCIe 3.0/2.0 x16 slots (x16, x8/x8, x8/x4+x4, x8+x4+x4/x0), one PCIe 3.0/2.0 x16 slot (max at x4 mode), and four PCIe 3.0/2.0 x1 slots.

For delivering sharp, clear graphics, this motherboard supports Intel HD Graphics with HDMI, DisplayPort, and DVI-D outputs. HDMI supports a maximum resolution of 4096 x 2160 at 30 Hz or 2560 x 1600 at 60 Hz, the DisplayPort supports a maximum resolution of 4096 x 2304 @ 60 Hz, and the DVI-D port supports a maximum resolution of 1920 x 1200 at 60 Hz. Integrated graphics has access to up to 1024MB of shared memory and also supports Intel InTru 3D, Quick Sync Video, Clear Video HD, and Intel Insider. Using DisplayPort 1.2 multi-stream technology, up to three monitors can be used at once.

Using the 8-Channel Realtek S1220A HD audio codec, the Prime Z370-A II can support audio with higher fidelity than standard controllers. Audio can also be output using the integrated five 3.5mm audio outputs or S/PDIF output header. This motherboard is also equipped with features such as SafeSlot, a TurboV Processing Unit, an Energy Processing Unit, Fan Xpert 4, Digi+ Power Control, Turbo App, 5X Protection III, 5-Way Optimization, and more. Included is a Q-Shield, an ASUS Fan Holder, three SATA III 6 Gb/s cables, an M.2 screw package, an SLI HB Bridge (2-Way-M), and a Q-connector (1-in-1). This motherboard is protected by a limited 3-year warranty.

General Features

Power Delivery Enhancements

Dr. MOS
The Prime Z370-A II's CPU VRM utilizes Dr. MOS power stages that combine high-side and low-side MOSFETs and drivers into a single package, delivering the power and efficiency that Intel processors need.
ProCool Power Connector
Compared with traditional power inputs, ProCool sockets are built to tight specifications to help ensure flush contact with the PSU power lines. This lowers impedance, which helps to prevent hotspots and connector failure.

Tune It Your Way

5-Way Optimization
ASUS 5-Way Optimization makes your system smart. One click takes care of complex tuning, dynamically optimizing essential aspects of the system to provide overclocking and cooling profiles that are tailored for your rig.

  • An automated tuning utility optimizes overclocking and cooling profiles for your unique system configuration
  • Fans stay whisper-quiet with everyday computing, and deliver efficient airflow when the system is crunching through CPU- or GPU-intensive tasks
  • Stress test functionality helps optimize and overclock for CPU- or memory-centric workloads
  • TPU (CPU Performance Boost)
    Unleash your system's full potential with the ASUS AI Suite 3 utility. The TurboV Processing Unit (TPU) is the intelligence behind their automated system-tuning utility, offering the ability to fine-tune voltages, monitor system tasks, and adjust overclock parameters for improved performance.
    EPU (All-Round Energy Efficiency)
    With the Energy Processing Unit (EPU), you'll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away Mode, a smart setting that creates an extreme energy-saving scenario by shutting down unused I/O controllers.
    Fan Xpert 4 (Flexible Cooling Controls for Air/Liquid)
    With the Prime Z370-A II, you have comprehensive control over fans, water, pumps, and even all-in-one (AIO) coolers—all via Fan Xpert 4, which is ASUS' UEFI. Whether you're cooling with aur or water, Auto-Tuning mode intelligently configures all parameters with a single click. There's also Extreme Quiet mode, which reduces all fan noise speeds to below the default minimum, keeping your system whisper-quiet when performing light tasks.
    Digi+ Power Control
    Digi+ delivers real-time control over voltage droop, switching frequency, and power efficiency settings, allowing you to fine tune CPU voltage regulation for stability and performance.
    Turbo App
    Whether you're a professional designer or hardcore gamer, you'll feel the benefit of ASUS' Turbo App. This intuitive tool allows you to define CPU overclocking, apply fan profiles, prioritize network data, and optimize audio settings at the app level, so your Prime Z370-A II system is optimized for whatever you're doing.
    Make Your Memory Go Faster
    ASUS OptiMem preserves memory signal integrity by routing memory traces and vias to the optimal PCB layer, and their T-Topology layout ensures time-aligned signaling by balancing trace lengths between memory slots. These enhancements lead to more headroom for overclocking and improved stability, allowing memory speeds of DDR4-4000 and beyond with all slots populated.
    OC Design - ASUS Pro Clock Technology
    The Prime Z370-A II includes a dedicated base-clock (BCLK) generator that extends CPU and memory overclocking margins. This custom solution works in tandem with the TPU to enhance voltage and BCLK overclocking control, providing the flexibility to extract every ounce of performance from Intel Core 8th Generation processors.
    Cooler By Design
    The Prime Z370-A II features comprehensive cooling controls, configurable via Fan Xpert 4 or the UEFI BIOS.

    Multiple Temperature Sources
    Each header can be set to monitor and react to three thermal sensors, and via Fan Xpert 4, you can even assign a sensor to monitor the temperature of supported ASUS graphics cards for optimal cooling during GPU- or CPU-intensive workloads.

    AIO Pump
    A dedicated PWM/DC header for self-contained water-cooling setups.

    4-Pin PWM/DC Fan
    Each onboard header supports auto-detection of PWM or DC fans.

    ASUS Fan Extension Card Support
    Includes three additional DC or PWM fan headers, plus three thermal probe headers.

    Smart Protection A dedicated integrated circuit protects each fan header from over-temperature and over-current.
    ASUS Fan Holder
    The ASUS Fan Holder increases airflow your Prime Z370 Series motherboard's VRM area. Just screw on a 40/50mm fan, mount the bracket on the heatsink, and hook the fan up to a header for a targeted cooling boost. With the Fan Holder and fan in place, VRM temperatures are reduced by up to 77°F / 25°C, which is good for your overclocking adventures.
    UEFI BIOS
    The mouse-controllable graphical BIOS has been improved to make it even more appealing. Whether you're a PC novice or a seasoned overclocker, EZ and Advanced modes will help you find your way, quickly and easily.

    EZ Tuning Wizard
    Quickly apply a CPU overclock to improve system performance, or configure a RAID array for faster data retrieval and backups.

    My Favorites
    Quickly discover tuning options and add preferred tools to the list.
    EZ Mode
    Intuitive Graphical Fan Control
    Fine-tune individual fans simply by dragging a curve with the mouse.

    EZ XMP
    Improve your DRAM performance with a click.

    SATA Information
    Display SATA port details that help you easily recognize drives.

    Fast Clock Adjustment
    Use mouse controls to change the time and date.
    Advanced Mode
    GPU POST
    View recommendations for multi-VGA configurations and detailed information for select ASUS graphics cards.

    Secure Erase
    Restore your SSDs to factory-fresh condition.

    Last Modified Log
    Track last change and save preferred profiles onto a USB drive.

    SATA Port Renaming
    Rename SATA ports for easy identification.

    Fast Connectivity

    M.2 up to 32 Gb/s
    With PCI Express 3.0/2.0 x4 bandwidth, M.2 supports data transfer speeds of up to 32 Gb/s. It's a good choice for an operating system or application drive, providing fast access to data.
    M.2 Heatsink - Keep Your SSD Cooler
    The Prime Z370-A II has an efficient heatsink to reduce M.2 SSD temperatures by up to 68°F / 20°C, which that means improved storage performance and SSD longevity.
    Intel Optane Memory
    Intel Optane is a non-volatile memory technology supported by Prime Z370-A II. Intel Optane memory modules accelerate attached storage to reduce boot and load times, so everything feels faster and more responsive.
    10 Gb/s USB 3.1 Gen 2 Type-A & Type-C
    With backward-compatible USB 3.1 Gen 2 Type-A and reversible USB 3.1 Gen 2 Type-C ports, you'll experience connection flexibility and data transfer speeds of up to 10 Gb/s.
    ThunderboltEX 3 Card
    The Prime Z370-A II provides full support for a ThunderboltEX 3 card. An Intel-certified Thunderbolt 3 add-on card enables bi-directional speeds of up to 40 Gb/s through a single cable, which is up to 4x faster than other PC data transfer protocols. Beyond sheer bandwidth, Thunderbolt 3 supports daisy-chaining up to six devices, utilizes a USB Type-C reversible connector for compatibility with USB 3.1 Gen 2 Type-C devices, and meets USB Power Delivery specifications for fast, high-power charging of up to 36W.
    Intel Ethernet
    The Prime Z370-A II features latest Intel Ethernet. Intel's LAN has the advantage of reducing CPU overhead and offering high TCP and UDP throughput for faster, smoother data transfers.
    Turbo LAN
    Turbo LAN with cFosSpeed traffic-shaping technology allows you to configure application priority via an intuitive interface and reduces network lag.

    Reliable Stability and Compatibility

    Built to Last
    ASUS motherboards are compatible with more than 1000 components and devices, and each new model undergoes a minimum of 8000 hours of strict validation. ASUS gives you the peace of mind of knowing that your motherboard is fit for virtually all environments and applications.
    5X Protection III
    Prime series motherboards are engineered with 5X Protection III, employing fine components, excellent circuit design, and exacting standards to help guarantee the quality and long-term durability of your motherboard. That means exceptional protection and stability for your build - thanks to decades of engineering experience.
    SafeSlot
    SafeSlot is the PCIe slot reinvented by ASUS and engineered to provide superior retention and shearing resistance. Manufactured in a single step using an insert-molding process, SafeSlot integrates the slot with fortifying metal for an inherently stronger slot, which is then firmly anchored to the PCB through additional solder points.
    LANGuard
    ASUS LANGuard is hardware-level networking protection that employs signal-coupling technology and premium anti-EMI surface-mounted capacitors to ensure a more reliable connection and better throughput.
    Overvoltage Protection
    A circuit design with built-in voltage regulators helps protect your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.
    DIGI+ VRM Precision control for stable pow
    DIGI+ VRM intelligently delivers power to the processor based on real-time demands, reducing energy waste and improving system stability.
    DRAM Overcurrent Protection
    Onboard resettable fuses help prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM to safeguard the lifespan of your system and connected devices.
    Stainless-Steel Back I/O
    Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide help assure a lifespan that's longer than ordinary panels.
    ESD Guards
    ASUS ESD Guards prolong the life of components while preventing damage from electrostatic discharge, providing protection for up to ±10kV of air discharge and ±6kV of contact discharge.
    1000+ Compatible Devices and Components
    The compatibility of the Prime Z370-A II is evidenced by ASUS' extensive list of supported devices—which includes thousands of compatible components—and their Qualified Vendor List (QVL) that identifies memory compatibility. It all adds up to more choices for worry-free PC-building experiences.
    8000+ Validation Hours
    Temperature and Humidity Tests
    Ensures components withstand extreme conditions.

    Thermal Measurement Tests
    Ensures that the system remains cool and stable under the heaviest loads.

    Insertion Tests
    Every post and connector is put through repeated installation cycles.

    Up to 48 Hours of Aging Tests
    Up to 48-hour aging test ensures reliability.

    Power Consumption Tests
    Checked for energy efficiency.

    Temperature and DC Margin Tests
    Ensures that the motherboard is capable of coping with voltage fluctuations caused by varying temperatures.

    Thermal Shock Tests
    Ensures the motherboard has the ability to survive temperature changes of -40 to 185°F / -40 to 85°C during transportation.

    Non-Operation Shock Tests
    Built to withstand jolts that may occur during shipping.

    Burn-In Tests
    Every component is checked to ensure functional operation.

    Installation Tests
    Connector placement is double-checked to ensure user-friendly installation.

    Drop Tests
    Drop tests from various heights help ensure durability.

    Salt and Spray Tests
    Tested for I/O reliability, prolonged lifespan, and rust resistance.

    Upgraded Audio

    Realtek S1220A Codec
    The Prime Z370-A II utilizes a unique audio codec designed in close collaboration with Realtek—the Realtek S1220A. It also features a 120-dB signal-to-noise (SNR) ratio for the stereo line-out and a 113-dB SNR for the line-in, providing high audio quality. Additionally, an impedance-sensing circuit automatically adjusts gain to ensure the proper volume range for your headphones.
    DTS Headphone:X Surround Sound
    Immersive 3D surround-sound technology provides a grand audio experiences.
    Crystal Sound 3 - Audio That Immerses You In the Game
    Power Pre-Regulator
    Reduces power input noise to help ensure consistent performance.

    Audio Shielding
    Separates analog/digital signal domains, helping to reduce multi-lateral interference.

    Separate Layer for Left and Right Tracks
    Helps ensure minimal crosstalk between audio paths.

    Integrated Amplifier
    Capable of driving high-impedance headphones without rolling off high or low frequencies.

    De-Pop Circuit
    Reduces startup popping noise to all audio outputs.

    Japanese Audio Capacitors
    Premium parts provide an immersive sound signature, with high fidelity.

    Visual Beauty, Virtual Worlds

    Aura Sync
    A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura Sync offers full RGB control with a variety of functional presets for the built-in RGB LEDs, as well as the LED strips connected to the onboard RGB headers. And it can all be synced with an ever-growing portfolio of Aura-capable ASUS hardware.
    Beyond VR Ready
    The Prime Z370-A II isn't just VR ready - it goes beyond. The ASUS Beyond VR Ready marque means that Prime Z370-A II has been tested with loads of components to ensure that your productivity, gaming, and entertainment needs are tuned for maximum performance. ASUS Beyond VR Ready opens up a new way to configure and build your dream system with total confidence.

    Intel Design

    Intel Z370 Chipset
    The Intel Z370 is a single-chipset design that supports 8th Generation Intel Core LGA 1151 processors. It provides improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability. Additionally, the Z370 provides a maximum of 10 USB 3.1 Gen 1 ports, six SATA III 6 Gb/s ports, and 32 Gb/s M.2 and PCIe 3.0 lane speed support, for faster data retrieval. Intel Z370 also supports integrated-graphics, so you'll enjoy the great graphics performance.
    Ready for 8th Generation Intel LGA 1151 Core Processors
    This motherboard supports 8th Generation Intel Core processors in the LGA 1151 package, with integrated graphics, memory, and PCI Express controllers to support onboard graphics output with dedicated chipsets, dual-channel (4-DIMM) DDR4 memory, and 16 PCI Express 3.0/2.0 lanes for great performance.
    In the Box
    ASUS Prime Z370-A II LGA 1151 ATX Motherboard
  • ASUS Q-Shield
  • ASUS Fan Holder
  • 3 x SATA III 6 Gb/s Cables
  • M.2 Screw Package
  • SLI HB Bridge (2-Way-M)
  • Q-Connector (1-in-1)
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description

    ASUS PRIME Z370-A II specs

    CPU
    Chipset Intel Z370
    CPU Socket LGA 1151
    Back Panel I/O
    USB 1 x USB 3.1 Gen 2 Type-C
    1 x USB 3.1 Gen 2 Type-A
    2 x USB 3.1 Gen 1 Type-A
    2 x USB 2.0 Type-A
    Display 1 x DVI-D 
    1 x DisplayPort 
    1 x HDMI 
    Audio 5 x 3.5 mm
    1 x S/PDIF
    Ethernet / Controller 1 x Intel i219V Gigabit
    Buttons Clear CMOS
    Memory
    Memory Slots 4 x 288-Pin
    Memory Support DDR4 2133, 2400, 2666, 2800, 3000, 3200, 3300, 3333, 3400, 3466, 3600, 3733, 3866, 4000 MHz
    Maximum Capacity 64 GB
    Channel Architecture Dual Channel
    Storage Expansion
    SATA 6 x SATA III
    M.2 1 x M Key 2242, 2260, 2280, 22110 (PCIe 3.0 x4, SATA (Unspecified))
    1 x M Key 2242, 2260, 2280 (PCIe (Unspecified))
    U.2 None
    Optane Memory Support Yes
    RAID Support RAID 0, 1, 5, 10
    Internal I/O
    Expansion Slots 2 x PCIe 3.0 x16
    1 x PCIe 3.0 x16 (x4 mode)
    4 x PCIe 3.0 x1
    USB 2 x USB 3.1 Gen 1 Header (Supports 4 USB Type-A Ports)
    2 x USB 2.0 Header (Supports 4 USB Type-A Ports)
    Multi-GPU Support 2-Way NVIDIA SLI
    3-Way AMD CrossFireX
    Air Cooling 2 x 4-Pin CPU
    2 x 4-Pin System
    1 x 4-Pin M.2
    1 x 5-Pin Extension
    1 x Thermal Sensor
    Liquid Cooling 1 x 4-Pin Pump
    Power Connectors 1 x 24-Pin Mainboard
    1 x 8-Pin CPU
    Security Chassis Intrusion, TPM Module
    LED Header 1 x RGB
    Audio None
    Diagnostics Clear CMOS, Power
    Add-On 1 x Thunderbolt Card Header
    Legacy 1 x Parallel
    BIOS
    ROM 128 Mb
    Front Panel I/O
    I/O Connection Headers AAFP
    Audio
    Audio Codec Realtek S1220A (8-Channel)
    Software
    Supported Operating Systems Windows 10 (64-Bit)
    Physical
    Form Factor ATX
    Dimensions 12.0 x 9.6" / 30.48 x 24.38 cm

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