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.
ASUS Corporate Stable Model
ASUS Corporate Stable Model (CSM) is a commercial program designed to provide stable and reliable motherboards. Offering up to 36-month product lifecycle support and 6-month end-of-life notice to allow sufficient lead times for your organization to get ready for product transitions. Each purchase of an ASUS CSM motherboard comes with ASUS Control Center Express - server-grade IT management software.
ASUS Control Center Express
ASUS Control Center Express is centralized IT management software designed to provide a convenient, effective, secure and cost-saving solution for enterprises, small and medium-sized businesses, and data centers in any type of industry. With the help of ASUS Control Center Express, your organization will be equipped to achieve success in even the most challenging modern IT environments.
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
A larger signal eye results in improved stability, more overclocking headroom, and lower operating voltages
ASUS OptiMem advantage:
Reduction in crosstalk
ASUS OptiMem benefits:
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 software or the UEFI BIOS.
USB 3.1 Gen 1 front-panel connector
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.
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.
Intel® Socket 1151 for 9th / 8th Generation
Core™ i7/Core™ i5/Core™ i3/Pentium®/Celeron® Processors
Supports Intel® 14 nm CPU
Supports Intel® Turbo Boost Technology 2.0
* The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.
* Refer to www.asus.com for CPU support list
2 x DIMM, Max. 32GB, DDR4 2666/2400/2133 MHz Non-ECC,
Dual Channel Memory Architecture
Supports Intel® Extreme Memory Profile (XMP)
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
* The maximum memory frequency supported varies by processor
** DDR4 2666MHz and higher memory modules will run at max. 2666MHz on Intel® 8th Gen. 6-core or higher processors.
Integrated Graphics Processor- Intel® HD Graphics support
Multi-VGA output support : HDMI/D-Sub ports
- Supports HDMI 1.4b with max. resolution 4096 x 2160 @ 24 Hz / 2560 x 1600 @ 60 Hz
- Supports D-sub with max. resolution 1920 x 1200 @ 60 Hz
Maximum shared memory of 1024 MB (for iGPU exclusively)
Supports Intel® InTru™ 3D, Quick Sync Video, Clear Video HD Technology, Insider™
1 x PCIe 3.0/2.0 x16 (x16 mode, gray)
2 x PCIe 3.0/2.0 x1
Intel® H310 Chipset :
1 x M.2 Socket 3, , with M Key, type 2242/2260/2280 storage devices support (both SATA & x2 PCIE mode)*1
4 x SATA 6Gb/s port(s), gray,
Realtek® RTL8111H, 1 x Gigabit LAN
Realtek® ALC887 8-Channel High Definition Audio CODEC
- Supports : Jack-detection, Front Panel Jack-retasking
Audio Feature :
- LED-illuminated design - Brighten up your build with the gorgeous illuminated audio trace path.
- Audio Shielding: Ensures precision analog/digital separation and greatly reduced multi-lateral interference
- Dedicated audio PCB layers: Separate layers for left and right channels to guard the quality of the sensitive audio signals
- Premium Japanese audio capacitors: Provide warm, natural and immersive sound with exceptional clarity and fidelity
* Choose the chassis with HD audio module in front panel to support 8-channel audio output.
Intel® H310 Chipset :
4 x USB 3.1 Gen 1 up to 5Gbps port(s) (2 at back panel, blue, Type-A, 2 at mid-board)
Intel® H310 Chipset :
6 x USB 2.0/1.1 port(s) (2 at back panel, , 4 at mid-board)
ASUS 5X Protection III :
- ASUS SafeSlot Core: Fortified PCIe Slot prevents damage
- ASUS LANGuard: Protects against LAN surges, lightning strikes and static-electricity discharges!
- ASUS Overvoltage Protection: World-class circuit-protecting power design
- ASUS Stainless-Steel Back I/O: 3X corrosion-resistance for greater durability!
- ASUS DIGI+ VRM: 4 Phase digital power design
- Optimem (Improved DDR4 stability)
ASUS EPU :
ASUS Exclusive Features :
- AI Suite 3
- Ai Charger
- PC Cleaner
- File Transfer
ASUS Quiet Thermal Solution :
- Stylish Fanless Design Heat-sink solution
- ASUS Fan Xpert
ASUS EZ DIY :
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
ASUS Q-Design :
- ASUS Q-DIMM
M.2 Onboard(The latest transfer technologies with up to 10Gb/s data transfer speeds)
1 x PS/2 keyboard (purple)
1 x PS/2 mouse (green)
1 x D-Sub
1 x HDMI
1 x LAN (RJ45) port(s)
2 x USB 3.1 Gen 1 (blue) Type-A up to 5Gbps
2 x USB 2.0
3 x Audio jack(s)
1 x USB 3.1 Gen 1(up to 5Gbps) connector(s) support(s)
additional 2 USB 3.1 Gen 1 port(s) (19-pin)
2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
1 x M.2 Socket 3 with M Key, type 2242/2260/2280 storage devices support (both SATA & x2 PCIE mode)
1 x COM port(s) connector(s)
4 x SATA 6Gb/s connector(s)
1 x CPU Fan connector(s) (1 x 4 -pin)
1 x Chassis Fan connector(s) (1 x 4 -pin)
1 x S/PDIF out header(s)
1 x 24-pin EATX Power connector(s)
1 x 4-pin ATX 12V Power connector(s)
1 x Front panel audio connector(s) (AAFP)
1 x Clear CMOS jumper(s)
1 x System panel connector
1 x Speaker connector
2 x SATA 6Gb/s cable(s)
1 x M.2 Anchor
1 x Supporting DVD
128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, MultilanguageBIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F6 Qfan Control, F3 MyFavorites, Last Modified log, F12 PrintScreen, and ASUS DRAM SPD (SerialPresence Detect) memory information
WOL by PME, PXE
Windows® 10 64-bit
mATX Form Factor
8.9 inch x 7.3 inch ( 22.6 cm x 18.5 cm )
*1 When a device in SATA mode is installed on the M.2
socket, SATA_2 port cannot be used.
Due to the Chipset limitation, when a M.2 device is installed in PCIe mode, the socket is set
to PCIe 2.0.