What are the maximum memory capacity and supported speeds for the B550M Pro VDH WiFi?
The motherboard supports 4 DDR4 memory slots with a maximum capacity of 128GB. It supports DDR4 speeds from 1866 MHz up to 3200 MHz by JEDEC standard, and up to 4400+ MHz via A-XMP OC Mode. (Page 15)
From the official Msi B550M Pro VDH WiFi Motherboard manual, page 15
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