6 x USB 3.1 Gen 1 (4 at back, 2 at mid-board)
6 x USB 2.0 (2 at back, 4 at mid-board)
Back Panel I/O Ports
1 x PS/2 keyboard
1 x PS/2 mouse
1 x DVI-D
1 x D-Sub
1 x LAN (RJ45)
4 x USB 3.1 Gen 1
2 x USB 2.0
1 x 8-channel Audio I/O
Internal I/O Connectors
1 x USB 3.1 Gen 1
2 x USB 2.0
1 x M.2 Socket 3
1 x COM port
6 x SATA 6Gb/s
1 x CPU Fan
1 x Chassis Fan
1 x S/PDIF out
1 x 24-pin EATX
1 x 8-pin EATX 12V
1 x Front audio
1 x Clear CMOS jumper
2 x SATA 6Gb/s cable(s)
1 x M.2 Anchor
1 x SCD
Intel LGA-1151 mATX motherboard with LED lighting, DDR4 2666MHz, M.2 support, SATA 6Gbps
- ASUS OptiMem_ Careful routing of traces and vias to preserve signal integrity for improved memory stability.
- Fan Xpert_Flexible controls for ultimate cooling and quietness, plus GPU-temperature sensing for cooler gaming.
- 5X Protection III_ Multiple hardware safeguards for all-round protection.
- Ultrafast connectivity_ Native M.2 support for Lightning-fast storage speeds
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.
Tune it your way
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
Cooler by design
Prime 300 Series features the most comprehensive cooling controls ever, configurable via ASUS Fan Xpert software or the UEFI BIOS.
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.
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 75C.
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.
Speed up with onboard M.2
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.
Intel Optane memory ready
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.
Reliable stability and compatibility
Protect your graphics card investment
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.
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.
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.
5X Protection III
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.
Upgrade to unrivalled audio
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced!
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.
Brighten Up Your Build
LED-illuminated control for trace paths
Built-in LED lighting options illuminate your build in a variety of eye-catching styles.
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.
1151 - Coffee Lake
for CPU support
DDR4 (Dual Channel)
2 x DIMM
Supports Intel HD Graphics
1 x VGA
1 x DVI-D
1 x PCIe 3.0/2.0 x16 (x16 mode, gray)
2 x PCIe 3.0/2.0 x1
6 x SATA III
1 x M.2 (2242/2260/2280) - SATA & PCIe
RAID 0, 1, 5, 10
Realtek ALC887 8-Channel High Definition Audio CODEC
USB Ports Supported