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.