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Motherboard
A620 PRO A620M-B
MSI
$28529
PRIME B650M-A II-CSM
ASUS
$26733
Chipset
AMD A620AMD B650
Socket
AM5AM5
Form Factor
Micro ATXMicro ATX
Max Memory
128 GB192 GB
Memory Type
DDR5DDR5
Memory Slots
24
ECC Memory Support
No No
PCIe x16 Slots
13
PCIe x16 4.0 Slots
13
PCIe x1 Slots
10
M.2 Slots
12
M.2 Slot Specifics
  1. 2260-2280M (PCIe4.0x4)
  2. 2280M (PCIe4.0x4)
  1. 2242-2260M (PCIe4.0x4)
  2. 2280M (PCIe4.0x4)
  3. 2242-2260M (PCIe4.0x4)
  4. 2280M (PCIe4.0x4)
SATA Ports
44
USB 2.0 Headers
22
USB 3.2 Headers
11
USB 3.2 (Gen 2) Headers
01
WiFi
802.11 ax802.11 ax
Ethernet Speed
2.5 Gbps2.5 Gbps
Audio Chipset
RealtekRealtek
Audio Channels
7.17.1
Optical S/PDIF Out
No No
BIOS Flashback
Yes Yes
Color
DarkDark
Supported CPUs
AMD Ryzen 7000, 8000, 9000AMD Ryzen 7000, 8000, 9000
M.2 Heatsink/Shields
No Yes
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Comparison Analysis

Comparing the A620 PRO A620M-B vs PRIME B650M-A II-CSM reveals distinct differences in their targeted use cases.

The PRIME B650M-A II-CSM is the more budget-friendly option, costing approximately $18 (7%) less than the A620 PRO A620M-B.