ASUS Prime B450M-A II Review & Specs

ASUS Prime B450M-A II AMD NVMe HDMI 2.0b/DVI/D-Sub USB 3.2 Gen 2 BIOS Flashback Aura Sync AM4 Micro ATX

ASUS Prime B450M-A II AMD NVMe HDMI 2.0b/DVI/D-Sub USB 3.2 Gen 2 BIOS Flashback Aura Sync AM4 Micro ATX

- ASUS

★ ★ ★ ★ ★
(3 reviews)

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  • AMD AM4 Socket : Compatible To Ryzen 5000, 3Rd/2Nd/1St Gen AMD Ryzen Cpus
  • Designed For Productivity: USB 3.2 Gen 2 With 10Gbps Ultra-Fast Transfer Speed, Onboard M.2 Support, 4Xdimms Support Up To 128GB DDR4 With 4400 (O.C.) Performance, HDMI 2.0B/DVI/D-Sub
  • Optimized Cooling: VRM & PCH Heatsink With Extensive Surface, Thermal Pads Help Transfer Heat From The Inductor And Phase Array To The Heatsink. Flexible Fan Controls For Ultimate Cooling And Quietness With ASUS Exclusive Fan Xpert 2+
  • Built To Last: All-Round Protection With Languard, DRAM Overcurrent Protection, Overvoltage Protection, Safeslot Core Safeguards And Stainless-Steel Back I/O, 1000+ Compatible Devices, 8000+ Validation Hours
  • PC DIY Friendly: With BIOS Flashback And ASUS Exclusive UEFI BIOS
  • Outstanding Gaming Audio: Dedicated Audio PCB Layers, Premium Japanese Audio Capacitors, And Audio Shielding Ensures Precision Analog/Digital Separation And Greatly Reduced Multi-Lateral Interference.
  • Aura Sync RGB & Armoury Crate Utility: With ASUS Armoury Crate Synchronizing LED Effects Across A Wide Range Of Compatible PC Gear, Plus RGB LED And RGB Header For Greater Customization
  • Please Ensure Your BIOS Is Up To Date If Installing A Compatible Ryzen 5000 Series CPU. Visit ASUS Site Search By Motherboard Model Name, Click On “Support” Tab, Drivers And Tools, Then BIOS & Firmware To Download The Latest BIOS.

Specifications Overview

Model
  • Prime B450M-A II
  • 90MB15Z0-M0AAY0
Release Date October 2020

* First availability for purchase, it may not correspond to the actual market launch date.

Socket AM4
Form factor Micro ATX
Chipset AMD B450
Supported Memory DDR4:
2133Mhz 2400Mhz 2666Mhz 2800Mhz 3000Mhz 3200Mhz 3300Mhz 3400Mhz 3466Mhz 3600Mhz 3733Mhz 3866Mhz 4000Mhz 4400Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS
** RAM support may also depend on the CPU memory controller
ECC RAM Support
Audio Chipset Realtek High Definition Audio CODEC
Audio Channels 7.1 Channels
LAN Chipset Realtek RTL8111H
Max LAN Speed 10/100/1000Mbps
SLI Support
CrossFire Support
RAID Support
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)
Wireless LAN
PCI-Express x16 Slots 1
PCI-Express x4 Slots 0
PCI-Express x1 Slots 2
SATA 6 Gbps Ports 6
SATA Express Ports 0
M.2 Ports 1
M.2 Devices support
  • 2242 / 2260 / 2280 / 22110 - M Key
RAM Slots 4
Maximum Supported RAM 128GB
Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 0


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