ASUS Prime B450M II 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 B450M II Series motherboard, you build smart, easy and affordably.
VRM Heatsink and Thermal Pads
A VRM heatsink with an underneath thermal pad improves heat transfer from the MOSFETs for better cooling performance.
Cooler by Design
Prime B450M-A II is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.
PCIe 3.0 M.2 (up to 32 Gbps)
Achieve speed with onboard M.2.
M.2 Slot supports up to 22110 and data-transfer speed up to 32Gbps via x4 PCI Express 3.0 bandwidth. It‘s the perfect choice for an operating system or application drive, providing fast access to data.
USB 3.2 Gen 2 Type-A
Numerous USB ports support high-end rigs loaded with peripherals, including two rear-panel USB Type-A connectors with fast USB 3.2 Gen 2 connectivity for compatible cases.
BIOS FLASHBACK
BIOS FlashBack is the simplest and safest (UEFI) BIOS update method. Simply drop the (UEFI) BIOS file onto a FAT32 formatted USB stick, plug it into the USB BIOS FlashBack port and press the button. Updates can even be performed without having memory or a CPU installed.
SafeSlot Core
A fortified PCIe slot prevents damage.
SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, SafeSlot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.
Specifications
Model: PRIME B450M-A II
CPU: AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors *
* Refer to www.asus.com for CPU support list
Chipset: AMD B450
Memory:
3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors
4 x DIMM, Max. 128GB, DDR4 4400(O.C)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3300(O.C.)/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).
* The maximum memory frequency supported varies by processor.
Graphic:
Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors *
1 x D-Sub
1 x DVI-D
1 x HDMI™ port
*Graphics specifications may vary between CPU types.
Expansion Slots:
3rd/2nd/1st Gen AMD Ryzen™ Processors
1 x PCIe 3.0 x16 (x16 mode)
2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics Processors
1 x PCIe 3.0 x16 (x8 mode)
AMD Athlon™ with Radeon™ Vega Graphics Processors
1 x PCIe 3.0 x16 (x4 mode)
AMD B450 chipset
2 x PCIe 2.0 x1
Storage:
Total supports 1 x M.2 slot(s) and 6 x SATA 6Gb/s ports
3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics : *1
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)
Athlon™ with Radeon™ Vega Graphics Processors : *1
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA mode)
3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors :
2 x SATA 6Gb/s port(s),
Support Raid 0, 1, 10
AMD B450 chipset :
4 x SATA 6Gb/s port(s),
Support Raid 0, 1, 10
LAN:
Realtek® RTL8111H
ASUS LANGuard
Audio:
Realtek ALC887/897 7.1-Channel High Definition Audio CODEC *
- Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback
Audio Feature :
- LED-illuminated design
- Audio Shielding
- Dedicated audio PCB layers
- Premium audio capacitors
USB Ports:
Rear USB Port ( Total 6 )
2 x USB 3.2 Gen 2 (up to 10Gbps) port(s)(2 x Type-A)
4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
Front USB Port ( Total 6 )
2 x USB 3.2 Gen 1 port(s)
4 x USB 2.0 port(s)
ASUS Special Features:
ASUS 5X PROTECTION III
- ASUS DIGI+ VRM
- ASUS LANGuard
- ASUS Overvoltage Protection
- ASUS SafeSlot Core
- ASUS Stainless-Steel Back I/O
ASUS Q-Design
- ASUS Q-DIMM
- ASUS Q-Slot
ASUS Thermal Solution
- Aluminum heatsink design
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
AURA Sync
- AURA RGB header
ASUS Lighting Control
Back I/O Ports:
1 x PS/2 keyboard/mouse combo port(s)
1 x DVI-D
1 x D-Sub
1 x HDMI
1 x LAN (RJ45) port(s)
2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A)
4 x USB 3.2 Gen 1 (blue) Type-A
3 x Audio jack(s)
1 x BIOS FlashBack™ Button(s)
Internal I/O Ports:
1 x CPU Fan connector(s) (1 x 4 -pin)
2 x Chassis Fan connector(s) (2 x 4 -pin)
1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 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 SPI TPM header
1 x COM port(s) connector(s)
6 x SATA 6Gb/s connector(s)
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 COM port header
1 x Speaker connector
1 x RGB Header
BIOS: 256 Mb Flash ROM, UEFI AMI BIOS
Operating System: Windows® 10 64-bit, Windows® 7 64-bit *2
Form Factor:
mATX Form Factor
9.6 inch x 9.5 inch ( 24.4 cm x 24 cm )
