Specification:

Model: PCIE 1 to 4 PCIE USB 3.0 Riser Card.
Bus interface: PCI-E x 1 (compatible with 4x / 8x / 16x / graphics card interface)
Interface: PCI-E USB 3.0 interface *4
Size: 4.72 x 2.64 x 2.24 inch
Compatible system: DOS / Linux / WinXP / Win7 / Win8 / Win10.

NOTE:

1.The 4 USB ports on this adapter card are PCI-E signals, not USB signals, so they cannot be connected to USB devices.
2.The number of graphics cards supported by the motherboard and the motherboard are different. Therefore, you must test it yourself.
3.Because WINDOWS limits the number of graphics cards, only 8 cards can be recognized under WIN10, and only 6 cards can be recognized under WIN7, so the revised graphics card driver must be used.
4.It is recommended to use the same type of graphics card on the same motherboard.
5.8 or more cards must use the LINUX system.

Package:

1 PCI-E USB 3.0 adapter riser card.