This device is a PCI Express to 3 x8 slot adapter that allows the connection of multiple peripherals to your computer's motherboard. It supports Gen 2 technology for improved reliability and performance. Ideal for users who need to expand their system's capabilities with additional PCI Express cards.
Supermicro RSC-R2UU-3E8G Pci Express To 3 X8 Slot Adapter - Passive - Gen 2 Support