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Compare ASUS Prime A520M-A II/CSM vs Prime B650M-A-CSM

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  3. ASUS Prime A520M-A II/CSM 🆚 ASUS Prime B650M-A-CSM
ASUS Prime A520M-A II/CSM and ASUS Prime B650M-A-CSM are both motherboards with the same Form factor (Micro ATX), SATA 6 Gbps Ports (4) and RAM Slots (4). The main differences are in Socket, Chipset, Supported Memory and PCI-Express x16 Slots.
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ASUS Prime A520M-A II/CSM AMD AM4 M.2 Support 1Gb Ethernet USB3.2 Gen1Type-A micro ATX
ASUS Prime A520M-A II/CSM
ASUS Prime B650M-A-CSM DDR5 PCIe 5.0 M.2 Micro-ATX
ASUS Prime B650M-A-CSM
Prices
(Change region)
In Stock
$79.99
In Stock
Free shipping
$148.50
Prices
(Change region)
In Stock
$179.99
In Stock
Free shipping
$206.65
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Brand
ASUS
Brand
ASUS
Model
  • PRIME A520M-A II/CSM
  • 90MB17H0-M0EAY0
  • 90MB17H0-M0AAYC
  • 90MB17H0-MVAAYC
Model
  • PRIME B650M-A-CSM
  • 90MB1C10-M0AAYC
Release Date
📅 June 2021
Release Date
📅 December 2022
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★☆
(1 reviews)
Price history
View Details ►
Price history
View Details ►
Compatible PC parts
Processors ► Memory ► Cases ► CPU Coolers ►
Compatible PC parts
Processors ► Memory ► Cases ► CPU Coolers ►
Series
-
Series
Prime
Socket
AM4
Socket
AM5
Form factor
Micro ATX
Form factor
Micro ATX
Chipset
AMD A520
Chipset
AMD B650
Supported Memory
DDR4
2133Mhz 2400Mhz 2666Mhz 2800Mhz 3000Mhz 3200Mhz 3333Mhz 3466Mhz 3600Mhz 3733Mhz 3866Mhz 4000Mhz 4133Mhz 4266Mhz 4400Mhz 4600Mhz 4800Mhz
Supported Memory
DDR5
4800Mhz 5000Mhz 5200Mhz 5400Mhz 5600Mhz
* 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
No
ECC RAM Support
No
Audio Channels
-
Audio Channels
Realtek 7.1 Surround Sound High Definition Audio CODEC
Max LAN Speed
-
Max LAN Speed
1 x Realtek 2.5Gb Ethernet
SLI Support
No
SLI Support
No
CrossFire Support
No
CrossFire Support
No
RAID Support
Yes
RAID Support
Yes
Back Connect
No
Back Connect
No
Back I/O Ports
-
Back I/O Ports
  • 2 x USB 3.2 Gen 2 ports (2 x Type-A)
  • 2 x USB 3.2 Gen 1 ports (2 x Type-A)
  • 4 x USB 2.0 ports (4 x Type-A)
  • 1 x DisplayPort
  • 1 x VGA port
  • 1 x HDMI port
  • 1 x Realtek 2.5Gb Ethernet port
  • 3 x Audio jacks
  • 1 x BIOS FlashBack button
  • 1 x PS/2 Keyboard/Mouse combo port
Wireless LAN
No
Wireless LAN
No
PCI-Express x16 Slots
1
PCI-Express x16 Slots
3
PCI-Express x4 Slots
0
PCI-Express x4 Slots
0
PCI-Express x1 Slots
2
PCI-Express x1 Slots
0
SATA 6 Gbps Ports
4
SATA 6 Gbps Ports
4
SATA Express Ports
0
SATA Express Ports
0
M.2 Ports
1
M.2 Ports
2
M.2 Devices support
  • 2242 / 2260 / 2280 - M Key
M.2 Devices support
  • 2242 / 2260 / 2280 - M Key
  • 2242 / 2260 / 2280 - M Key
RAM Slots
4
RAM Slots
4
Maximum Supported RAM
128 GB
Maximum Supported RAM
128 GB
Onboard USB 2.0
2
Onboard USB 2.0
2
Onboard USB 3.2 Gen 1
1
Onboard USB 3.2 Gen 1
1
Onboard USB 3.2 Gen 2
0
Onboard USB 3.2 Gen 2
1
Onboard USB 3.2 Gen 2x2
0
Onboard USB 3.2 Gen 2x2
0
-

Comparison and key differences summary

⛔ You are comparing motherboards with different sockets. They cannot support the same CPUs. Try to compare motherboards within the same platform.

Reasons to buy the ASUS Prime A520M-A II/CSM:

  • 56% cheaper, you can save $100.00
  • +2 Slots PCI-E x1

Buy now

Reasons to buy the ASUS Prime B650M-A-CSM:

  • Newer Product, it was released around 18 months later
  • +2 Slots PCI-E x16
  • +1 Ports M.2
  • +1 Onboard USB 3.2 Gen 2

Buy now

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