Tom's Hardware on MSN
AMD B650 expansion cards hit retail starting at $199
A couple of new add-in cards exemplify the trend of slapping AMD's Promontory 21 chipset onto a card for extra I/O expansion.
Expansion cards don't usually get tons of attention, but they are some of the most valuable and affordable upgrades you can make to your PC. Instead of buying a new motherboard to get features or ...
The Prom21 expansion card from WisdPi brings USB, M.2 slots and SATA. Theoretically, it even runs on Raspberry Pis.
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