What this PCI-E riser card can offer you is that it can effectively solve the problem of insufficient host interface.Adopting 4-layer circuit board design, this PCI-E riser card can achieve strong anti-interference ability and effectively ensure the stability of PCI-E high-speed signal transmission, data integrity and impedance matching.Using high quality PCB, it is lightweight, reliable and durable to use.The length of the product is 8cm, the width is 2.2cm, and the height is 1.8cm.It is equipped with all-aluminum heat sink to ensure stable operation of the chip.Item Name: PCI-E Riser CardMaterial: PCBCompatible Systems: for Windows XP, 7, 8, 10, for VistaGold Finger Interface: M.2 M KEYMain Interface: 4 x PCIE X1 (Note: All Four Interfaces Are PCIE, not USB)Features: High Speed, Universal, Heat SinkSize Details: 8cm x 2.2cm x 1.8cm/3.15" x 0.87" x 0.71" (Approx.)Notes:Due to the light and the screen setting difference, the item's color may slightly differs from the pictures.Please allow slight dimension difference due to the manual measurement.Package Includes:1 x PCI-E Riser Card