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What are Small PCIe x1 Slots Used For?
ZOTAC Announces GeForce GT 520 in PCI and PCIe x1 Interface Variants | TechPowerUp
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Speed testing -x16 vs. -x1 with PCI Express video cards
The Convenience of PCI Express x1 Graphics Cards - YouTube
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Speed testing -x16 vs. -x1 with PCI Express video cards
The Most Innovative ~$50 Graphics Card For Linux Users - Phoronix