1 D-Sub
2 DVI-D
3 5Gb/s USB Type C
4 HDMI
5 4 x USB 3.1 Gen 1
6 LAN
7 8-ch Audio
10 DIGI+ VRM & EPU
11 DDR4 2666/2400/2133 Support
12 Supports 14nm CPU Intel® LGA 1151 Socket
13 Front USB 3.1 Gen 1 Headers
14
2 x 32Gb/s M.2
Intel® Optane™ Memory Ready
15 Intel® B365 Chipset
16 SATA 6.0 Gb/s Ports
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 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.
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
A larger signal eye results in improved stability, more overclocking headroom, and lower operating voltages
Tested by using Synopsys HSPICE simulation software
EPU
Fan Xpert 2+
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.
Prime 300 Series motherboards offer comprehensive control over system fans, via the included Fan Expert 2+ software. Auto-Tuning mode intelligently configures all parameters with a single click.
Prime 300 Series features the most comprehensive cooling controls ever, configurable via ASUS Fan Xpert software or the UEFI BIOS.
Multiple temperature sources
4-pin PWM/DC fan
Each header can be set to monitor and react to up to three thermal sensors. Via Fan Xpert, you can also assign a sensor to monitor the temperature of supported ASUS graphics cards to ensure optimal cooling during GPU- or CPU-intensive workloads.
Each onboard CHA FAN header supports PWM and DC mode.
* Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.
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.
Intuitive graphical fan control Fine-tune individual fans simply by dragging a curve with the mouse.
SATA Information: Display SATA port details that help you easily recognize drives.
Fast Clock Adjustment: Use mouse controls to change the time and date.
My Favorites Quickly find tuning options and add preferred tools to the list.
User Profile Save BIOS settings for migration to new BIOS version or system.
SATA Port Renaming: Rename SATA ports for easy identification.
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.
With x4 PCI Express® 3.0/2.0 bandwidth, M.2 supports up to 32Gbps 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.
Intel Optane™ is a revolutionary non-volatile memory technology supported by Prime 300 Series motherboards. Intel Optane memory modules accelerate attached storage to reduce boot and load times, so everything feels faster and more responsive.
SafeSlot is the PCIe slot reinvented by ASUS and engineered to provide superior retention and shearing resistance. Manufactured in a single step using a new 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.
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.
5X
Protection III
Hardware safeguards to ensure long-term durability.
520+
DDR4 compatibility
Industry-leading DDR4 memory compatibility for best flexibility and reassurance.
1000+
compatible devices
Compatibility with a range of CPUs, memory modules, graphics cards and more.
8000+
validation hours
Extensive testing with latest components for enhanced reliability, compatibility and safety.
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.
Our Prime 300 Series motherboards also have strengthened solder points around both the PCIe and DIMM pins.
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.
An exclusive circuit design with built-in voltage regulators protects your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.
ASUS-exclusive DIGI+ VRM intelligently delivers power to the processor based on real-time demands, reducing energy waste and improving system stability.
Onboard resettable fuses prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM ― so it provides a safeguard to protect the lifespan of your system and connected devices.
Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide assure a lifespan that's 3X longer than ordinary panels.
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.
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.
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.
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced!
Separates analog/digital signal domains, significantly reducing multi-lateral interference.
Ensures minimal crosstalk between audio paths.
Premium parts provide an immersive sound signature, with exceptional fidelity.
* Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.
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.
Static
Breathing
Strobing
Rainbow
Color cycle
Comet
Flash &
Wave
Glowing
Starry
Music
CPU
* 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.
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.
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 B365 chipset The Intel® B365 is a single-chipset design that supports Socket 1151 for 9th Gen and 8th Gen Intel® Core™, Pentium® Gold and Celeron® processors. It provides improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability. Additionally, the B365 chipset provides a maximum of eight USB 3.1 Gen 1 ports, six SATA 6Gbps ports, and 32Gbps M.2 and PCIe 3.0 lane-speed support, for faster data retrieval. Intel B365 also supports integrated-graphics, so you'll enjoy the very latest in graphics performance.
Ready for Socket 1151 for 9th / 8th Gen Intel® Core™, Pentium® Gold and Celeron® processors This motherboard supports Socket 1151 for 9th Gen and 8th Gen Intel® Core™, Pentium® Gold and Celeron® processors, 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.
