Strong and durableTwo PCI slots are extended through the PCIE slot, suitable for PCIEX1X4X8X16.Support two PCI32 bit 33MHz bus, power supply through SATA link, compliant with PCIEXPRESS1.0 specification, compliant with PCI2.3 specification, voltage 5V or 3.3V (controllable).Wide range of applications: tax cards, tax control cards, sound cards, network cards, fax cards, printing cards, video capture cards, serial port cards, parallel port cards, memory cards, recording cards and other PCI devices.Innovative solution design: expand two PCI slots through PCIE, similar products only support one PCI slot. When using a riser card, the computer needs to be turned off to support plugging and unplugging.Type: Riser CardInterface: USB to PCI slotChip: PI7C9X111SLData transfer speed: 1000 (MB/s)Product size: PCI card 128x48x22mm/PCI-E card 66.5x63x10mmSystem support: Dos/Windows2000/XP/Vista/win7/win8/win10Colour: BlackMaterial: aluminum alloyPackage Contents:1 x PCI Card1 x PCIE Card1 x Power Cable1 x Data CableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.