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AMD AM4 mATX motherboard with Aura Sync RGB header, DDR4 4400MHz, M.2, HDMI 2.0b, SATA 6Gbps and USB 3.1 Gen 2

    Fan Xpert 2+: Flexible controls for ultimate cooling and silence.
    Ultrafast connectivity: Supreme flexibility with USB 3.1 Gen 2 and native M.2
    ASUS Aura Sync header: Onboard connector for RGB LED strips, easily synced with an ever-growing portfolio of Aura Sync-capable hardware
    5X Protection III: Multiple hardware safeguards for all-around system protection


ASUS Prime B450 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 AMD Ryzen™ 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 B450 Series motherboard, you build smart, easy and affordably.

Make your memory faster

Featuring an array of trace layout tweaks that improve memory stability, PRIME B450 Series provides a potent foundation for your build. With comprehensive support for the full gamut of Ryzen memory configurations – from entry-level to performance-oriented — PRIME B450 Series is a versatile all-rounder that can work or play.

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CPUAMD AM4 Socket AMD Ryzen™ 2nd Generation/Ryzen™ with Radeon™ Vega Graphics/Ryzen™ 1st Generation Processors


ChipsetAMD B450


MemoryAMD Ryzen™ 2nd Generation/ Ryzen™ with Radeon™ Vega Graphics/ Ryzen™ 1st Generation Processors

4 x DIMM, Max. 64GB, DDR4 3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory

Dual Channel Memory Architecture

ECC Memory (ECC mode) support varies by CPU.

* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).


GraphicIntegrated in the AMD Ryzen™ with Radeon™ Vega Graphics Processors

Multi-VGA output support : HDMI/DVI-D/D-Sub ports

- Supports HDMI 2.0b with maximum resolution of 4096  x 2160  @ 60  Hz

- Supports DVI-D with max. resolution 1920  x 1200  @ 60 Hz

- Supports D-sub with max. resolution 1920  x 1200  @ 60  Hz


Expansion SlotsAMD Ryzen™ 2nd Generation/ Ryzen™ 1st Generation Processors

1 x PCIe 3.0/2.0 x16 (x16 mode)

AMD Ryzen™ with Radeon™ Vega Graphics Processor

1 x PCIe 3.0/2.0 x16 (x8 mode)

AMD B450 chipset

2 x PCIe 2.0 x1


StorageAMD B450 chipset : 

4 x SATA 6Gb/s port(s),

Support Raid 0, 1, 10

AMD Ryzen™ 2nd Generation/ Ryzen™ with Radeon™ Vega Graphics/ Ryzen™ 1st Generation Processors : 

2 x SATA 6Gb/s port(s),

Support Raid 0, 1, 10

AMD Ryzen™ 2nd Generation/ Ryzen™ with Radeon™ Vega Graphics/ Ryzen™ 1st Generation Processors : 

1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)*1


LANRealtek® RTL8111H, 1 x Gigabit LAN Controller(s)

ASUS LAN Guard


AudioRealtek® ALC887 8-Channel High Definition Audio CODEC

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.


USB PortsAMD Ryzen™ 2nd Generation/ Ryzen™ with Radeon™ Vega Graphics/ Ryzen™ 1st Generation :

4 x USB 3.1 Gen 1 port(s) (4 at back panel, blue)

AMD B450 chipset :

2 x USB 3.1 Gen 2 port(s) (2 at back panel, )

AMD B450 chipset :

2 x USB 3.1 Gen 1 port(s) (2 at mid-board)

AMD B450 chipset :

4 x USB 2.0/1.1 port(s) (4 at mid-board)


Special FeaturesASUS 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: 6  Phase digital power design

ASUS Exclusive Features :

- AI Suite 3

- Ai Charger

ASUS Quiet Thermal Solution :

- Stylish Fanless Design Heat-sink solution

- ASUS Fan Xpert 2+

ASUS EZ DIY :

- ASUS CrashFree BIOS 3 

- ASUS EZ Flash 3 

- ASUS UEFI BIOS EZ Mode

- Multi-language BIOS

ASUS Q-Design :

- ASUS Q-Slot

- ASUS Q-DIMM


Back I/O Ports1 x PS/2 keyboard (purple)

1 x PS/2 mouse (green)

1 x DVI-D

1 x D-Sub

1 x HDMI

1 x LAN (RJ45) port(s)

2 x USB 3.1 Gen 2

4 x USB 3.1 Gen 1 ,

3 x Audio jack(s)


Internal I/O Ports1 x Aura RGB Strip Header

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 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)

1 x TPM header

1 x COM port(s) connector(s)

6 x SATA 6Gb/s connector(s)

1 x CPU Fan connector(s) (1 x 4 -pin)

2 x Chassis Fan connector(s) (2 x 4 -pin)

1 x S/PDIF out header(s)

1 x 24-pin EATX Power connector(s)

1 x 8-pin ATX 12V Power connector(s)

1 x Front panel audio connector(s) (AAFP)

1 x System panel(s)

1 x Clear CMOS jumper(s)

1 x Speaker connector


AccessoriesUser´s manual

I/O Shield

2 x SATA 6Gb/s cable(s)

1 x M.2 Screw Package

1 x Supporting DVD


BIOS128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, F3 My Favorite, Last Modified log, F12 PrintScreen, ASUS DRAM SPD (Serial Presence Detect) memory information, F6 Qfan Control


Operating SystemWindows® 10 64-bit


Form FactormATX Form Factor

24.4  cm x 24  cm (9.6  x 9.5 )


NoteThe M.2 Socket shares bandwidth with the SATA_5/6 ports, and therefore the SATA_5/6 ports cannot be used when an M.2 device is installed.