Product Comparison: ASUS PRIME B450M-K vs ASUS PRIME B450M-A

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ASUS PRIME B450M-K Motherboard

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ASUS PRIME B450M-A Motherboard

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General Specifications

Brand

ASUS

Model

PRIME B450M-K

PRIME B450M-A

Origin

China

About the Product

The AMD B450 chipset delivers high performance and flexibility with the latest AMD AM4-socket Ryzen processors. It also offers AMD StoreMI storage acceleration technology and provides two 10Gbps USB 3.1 Gen2 ports, two USB 3.1 Gen1 ports, and four 6Gbps SATA ports for faster data retrieval.

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.

Key Specs

Form Factor

Micro ATX

Socket

AM4

Chipset

AMD B450

Supported Processors

Supports 1st, 2nd and 3rd Gen AMD Ryzen

Memory Slot Type

288 pin

What customers say about "Key Specs"

ASUS PRIME B450M-K Motherboard

Great motherboard for first time pc builder, easy to use bios.
Physical installation into the case was no problem. Great form factor.
Supports everything needed though, Ryzen 5 CPU.
Great kit, fitted and working without any issues.
Using with a Ryzen 5 2600 and we are very happy with the system performance.

ASUS PRIME B450M-A Motherboard

Worked with a new Ryzen 7 3700x out of the box with no flashing required.
I use it with an AMD Ryzen 5 2600 for a desktop PC.
Very nice, fits with AMD Ryzen 5 processor.
The B450M-A is a best for budget gaming beginners.
Supports the third generation of Ryzen processors without bios updating.

Size & Weight

Height

8.9 in.

9.6 in.

Width

8.7 in.

9.6 in.

Depth

1 in.

Weight

1.81 lbs.

1.54 lbs.

ASUS PRIME B450M-K

ASUS PRIME B450M-A

ASUS PRIME B450M-K

ASUS PRIME B450M-A

ASUS PRIME B450M-K

ASUS PRIME B450M-A

ASUS PRIME B450M-K

ASUS PRIME B450M-A

Memory

Memory Type

DDR4

Maximum Speed

4400 MHz

Number Of Memory Slots

Max. Memory Supported

64 GB

128 GB

ASUS PRIME B450M-K

ASUS PRIME B450M-A

ASUS PRIME B450M-K

ASUS PRIME B450M-A

ASUS PRIME B450M-K

ASUS PRIME B450M-A

What customers say about "Memory"

ASUS PRIME B450M-K Motherboard

Good motherboard. Amazing speed of memory.
The memory was easily overclocked to its speed.
Perfect memory support, runs at full speed.
There were no memory compatibility issues.
Unfortunately, there are only 2 memory slots, which is not enough.

ASUS PRIME B450M-A Motherboard

I purchased 32gb of ram is all is detected.
RAM at 3200MHz passes perfectly.
It immediately recognized the 2666 Mhz DDR4 ram.
Simple and complete bios interface. Supports up to 4 slots of RAM.
Excellent mid range motherboard that includes many features. And works great with 64GB memory.

Connectivity

PCI

PCI-E

PCIe 3.0/2.0 x16, 2x PCIe 2.0 x1

HDMI

USB

6x USB 3.1 Gen1, 2x USB 3.1 Gen2, 4x USB 2.0/1.1

SATA

Other Interfaces

2x PS/2, DVI-D, VGA, RJ-45, 3x audio jacks, M.2

2x PS/2, M.2, DVI-D, VGA, RJ-45, 3x audio jacks

ASUS PRIME B450M-K

ASUS PRIME B450M-A

What customers say about "Connectivity"

ASUS PRIME B450M-K Motherboard

Pins for power and data connections are well labelled on the board.
The M.2 slot supports full power NVMe SSDs.
Plenty of SATA and M.2 for my setup.
The I/O ports on the back are more than enough.
Would of like to see a HDMI port though.

ASUS PRIME B450M-A Motherboard

BIOS complete and rather well done, connectors good.
The connectors are easily identified on the board for someone who is accustomed to mounting a PC.
All connectors are of good quality.
Had to return the item, it had problems with the USB ports.
There are only 2 sockets for the fans of the enclosure.

Features

Native Audio

Realtek ALC887

Additional Accessories Included

I/O Shield, M.2 Screw, 2x SATA cables, Driver disk

I/O Shield, 2x SATA cables, M.2 Screw, Driver disk

Extras

ASUS 5X Protection III, AI Suite 3, Ai Charger, ASUS Quiet Thermal Solution, ASUS EZ DIY, ASUS Q-Design

Ai Charger, ASUS 5X Protection III, AI Suite 3, ASUS Quiet Thermal Solution, ASUS Fan Xpert 2+, ASUS EZ DIY, ASUS Q-Design

What customers say about "Features"

ASUS PRIME B450M-K Motherboard

This product was easy to install and setup.
Good features in BIOS such as easy overclocking of CPU and monitoring for a budget Mobo.
Fits perfectly in my case and has a simple to use BIOS.
Economical, robust, compatible with future Ryzen third generation.
Small price, little motherboard. Has amazing audio codec.

ASUS PRIME B450M-A Motherboard