100pcs USB 3.0 PCI-E Express 1x To 16x Extender Riser Card Adapter Power Cable
NOTICE: It only can get 1X band width from the PCI-E 16X slot for your 4X,8X or 16X device. Supports high speed PCI-E 1x, 4x, 8x, 16x card (but only provide 1x speed). 1-slot PCI-E 1x riser card with high speed USB 3.0 cable.