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

• Choose the chassis with HD audio module in front panel to support 8-channel audio output.

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)

Software Features

ASUS Exclusive Software Armoury Crate

• AURA Creator
• AURA Sync AI Suite 3
• Performance and Power Saving Utility TurboV EVO EPU DIGI+ VRM Fan Xpert 2+ PC Cleaner
• EZ update
• System Information ASUS CPU-Z AI Charger ASUS EZ Installer DAEMON Tools Norton Anti-virus software (Free Trial for 60 days) WinRAR UEFI BIOS ASUS EZ DIY
• ASUS CrashFree BIOS 3
• ASUS EZ Flash 3
• ASUS UEFI BIOS EZ Mode

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

Accessories

User´s manual I/O Shield 2 x SATA 6Gb/s cable(s) 1 x M.2 Screw Package 1 x Supporting DVD

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 )

Note

1The M.2 slot shares bandwidth with the SATA6G_5/6 ports, and therefore the SATA6G_5/6 ports cannot be used when an M.2 device is installed. 2To support Windows 7 64-bit, please install an AMD Ryzen™ 2nd Generation or Ryzen™ 1st Generation Processor.