PCI-E 1x to 16x Riser Extension Card This PCI-E 1x to 16x Flex Cable Riser Extension Card with Power is flexible for 1U,2U,3U chassis. It supports high speed PCIe 1X card and 4X,8X,16X card(only provide 1X speed). This cable has extra molex (12V/GND) power supply for PCI-e video card. Features: With 2 layer PCB board designWith high Quality Flex Ribbon Riser CardNo Driver necessaryNot support hot swappableThis cable design comes with additional power connection, with 4Pin connector, more stable and saferInterface : PCI Express 1X male, PCI Express 16X female, LP4 Power supplyConnector at end A : 1 x PCI-E 1X maleConnector at end B : 1 x PCI-E 16X femaleConnector at end C : 1 x 4p LP4 Power MaleApprox. Length : 30 cm Package Content : 1x PCI-E 1x to 16x Riser Extension Card Berat : 200gram