ASUS Prime 300 Series motherboards provide the solid foundation needed for your first build, plus flexibility to grow with your ambitions. We've melded all the good stuff that's packed into the latest 8th Generation Intel® Core™ processors with essential ASUS design and engineering, so you benefit from industry-leading technologies — including automated system tuning, comprehensive cooling controls, and immersive onboard audio. When you build with an ASUS Prime 300 Series motherboard, you build smart, easy and affordably.

Improved DDR4 stability

ASUS OptiMem preserves memory signal integrity by routing traces and vias to the optimal PCB layer, and our T-Topology trace layout ensures time-aligned signaling by balancing trace lengths between memory slots. These enhancements allow the Prime 300 Series to support a wide range of dual and quad-DIMM memory kits, while providing your rig with the stability it needs to deal with any type of workload - whether you're gaming or running intensive applications

ASUS OptiMem benefits:

Improved memory stability and compatibility

Allows lower memory latencies at equivalent voltages

Improved memory frequency margin

Tested by using Synopsys HSPICE simulation software

Cooler by design

Prime 300 Series features the most comprehensive cooling controls ever, configurable via ASUS Fan Xpert 2+ software or the UEFI BIOS.

Multiple temperature sources

Each header can monitor and react to dedicated thermal sensors.

4-pin PWM/DC fan

Each onboard CHA FAN header supports PWM and DC mode.

Media-acclaimed UEFI BIOS

The UEFI BIOS is an early waypoint on any PC-building journey, and Prime 300 Series has one of the best in the business.

Q-Fan Control

Can configure the fan's operating speed manually, or use the easy pre-configured fan profiles to select Standard, Silent, Turbo or Full Speed modes, plus automatic switch to full speed if the temperature hits 75°C.

Search Function

When you're ready for a deeper dive, Advanced mode enables full control over every aspect of the motherboard — with a built-in Search function to find the setting you need in the blink of an eye.

USB 3.1 Gen 1 front-panel connector

Future-proof connectivity

USB 3.1 Gen 1 is right where you need it, with two super-speed headers for the front panel. Experience data-transfer speeds up to 10X faster than USB 2.0 with instant plug-and-play connectivity, and avoid back-breaking contortions in the hunt for hard-to-reach rear ports.

* Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.

M.2

Speed up with onboard M.2

With x2 PCI Express® 2.0 bandwidth, M.2 supports up to 10Gbps data-transfer speeds. It's the perfect choice for an operating system or application drive, providing fast access to data.

* Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.

Built to Last

ASUS is the world's leading motherboard brand. Our motherboards are extensively tested for compatibility with more than 1,000 components and devices, and each new model undergoes a minimum of 8,000 hours of strict validation — offering the peace of mind of knowing that your ASUS motherboard is fit for all environments and applications. Choosing ASUS is an assurance of trouble-free DIY experiences.

Prime 300 Series motherboards are engineered with industry-leading 5X Protection III, employing the finest components, excellent circuit design and exacting standards to guarantee the quality and long-term durability of your investment. That means exceptional protection and stability for your build — thanks to decades of engineering experience from the world's leading motherboard brand.

1000+

Compatible devices and components

The superior compatibility of Prime 300 Series is evidenced by our extensive list of supported devices — which includes thousands of compatible components — and our Qualified Vendor List (QVL) that identifies memory compatibility. It all adds up to more choices for worry-free PC-building experiences.

8000+

VALIDATION HOURS

ASUS motherboards offer superb endurance. We verify this by subjecting every board to more than 8,000 hours of stringent tests. A barrage of burn-in, environmental, compatibility, software and safety tests confirm that our motherboards are exceptionally robust. It also shows that ASUS reliability surpasses industry standards, ensuring that every component is designed to function flawlessly in any environment.

Outstanding audio

Combined onboard features deliver elevated audio

Intelligent design and premium hardware create audio quality unlike anything you've ever experienced!

Audio shielding

Separates analog/digital signal domains, significantly reducing multi-lateral interference.

Separate layer for left and right tracks

Ensures minimal crosstalk between audio paths.

Premium Japanese audio capacitors

Premium parts provide an immersive sound signature, with exceptional fidelity.

Aura Sync

Outshine the competition

A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura Sync offers full lighting connected via the motherboard's RGB header, with a variety of functional presets for external LED strips.* And it can all be synced with an ever-growing portfolio of Aura-capable ASUS hardware.

* The Aura RGB-strip header supports 5050 RGB LED strips with a max power rating of 3A (12V). For maximum brightness, strip length should not exceed 3m.

LED strips and Aura Sync-compatible devices are sold separately.

* Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.

Brighten Up Your Build

LED-illuminated control for PCIe slot and trace paths

Built-in LED lighting options illuminate your build in a variety of eye-catching styles.

* Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.

Beyond VR ready

Complete your immersion

Prime 300 series isn't just VR ready — it goes way beyond. The ASUS Beyond VR Ready marque means that Prime 300 series has been tested with loads of class-leading 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 H310 chipset

The Intel® H310 is a single-chipset design that supports 9th & 8th Generation Intel® Core™ LGA1151 processors. It provides improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability. Additionally, the H310 chipset provides a maximum of four USB 3.1 Gen 1 ports, four SATA 6Gbps ports, and 10Gbps M.2 and PCIe 2.0 lane-speed support, for faster data retrieval. Intel H310 also supports integrated-graphics, so you'll enjoy the very latest in graphics performance.

Ready for 9th & 8th Generation Intel LGA1151 Core processors

This motherboard supports 9th & 8th Generation Intel® Core™ processors in the LGA1151 package, with integrated graphics, memory and PCI Express controllers to support onboard graphics output with dedicated chipsets, dual-channel (2-DIMM) DDR4 memory and 16 PCI Express 3.0/2.0 lanes for great performance.

- ASUS OptiMem: Careful routing of traces and vias to preserve signal integrity for improved memory stability

- Fan Xpert 2+: Flexible controls for ultimate cooling and quietness, plus GPU-temperature sensing for cooler gaming

- 5X Protection III: Multiple hardware safeguards for all-round protection

- ASUS Aura Sync header: Onboard connector for RGB LED strips, easily synced with an ever-growing portfolio of Aura Sync-capable hardware

- Ultrafast connectivity: Native M.2 support for Lightning-fast storage speeds

Specifications

Internal I/O

Number of M.2 (E) slots 1

Supported storage drive interfaces M.2,Serial ATA

USB 2.0 connectors 2

USB 3.0 (3.1 Gen 1) connectors 1

Number of SATA connectors 4

Number of EATX power connectors 2

Number of COM connectors 1

Number of chassis fan connectors 1

Front panel audio connector Yes

CPU fan connector Yes

Technical details

Motherboard chipset family Intel

Motherboard chipset Intel® H310

Supported processor sockets LGA 1151 (Socket H4)

Motherboard form factor ATX

Component for PC

Performance

Motherboard chipset family Intel

Motherboard chipset Intel® H310

Supported processor sockets LGA 1151 (Socket H4)

Motherboard form factor ATX

Component for PC

Processor

Processor manufacturer Intel

Compatible processor series Intel® Celeron®, Intel Core i9

Supported processor sockets LGA 1151 (Socket H4)

Processor socket LGA 1151 (Socket H4)

Memory

Number of memory slots 2

Memory slots type DIMM

Supported memory types DDR4-SDRAM

Memory channels Dual

Non-ECC Yes

Supported memory clock speeds 2133,2400,2666 MHz

Maximum internal memory 32 GB

Unbuffered memory Yes

Storage controllers

Supported storage drive interfaces M.2,Serial ATA

Graphics

Maximum resolution 4096 x 2160 pixels

Back panel I/O ports

USB 3.0 (3.1 Gen 1) Type-A ports quantity 2

USB connector type USB Type-A

USB 2.0 ports quantity 2

VGA (D-Sub) ports quantity 1

PS/2 ports quantity 1

HDMI ports quantity 1

Ethernet LAN (RJ-45) ports 1

COM ports quantity 1

Networking

Ethernet LAN Yes

LAN controller Realtek RTL8111H

Ethernet interface type Gigabit Ethernet

Features

Motherboard chipset family Intel

Motherboard chipset Intel® H310

Supported processor sockets LGA 1151 (Socket H4)

Motherboard form factor ATX

Component for PC

Expansion slots

Number of M.2 (E) slots 1

PCI Express x1 (Gen 2.x) slots 1

PCI Express x16 (Gen 2.x) slots 1

PCI Express x16 (Gen 3.x) slots 1

PCI slots 3

BIOS

BIOS type UEFI AMI

BIOS memory size 128 Mbit

ACPI version 6.1

Video

Maximum resolution 4096 x 2160 pixels

Weight & dimensions

Width 191 mm

Depth 305 mm