Features: PCIe x1 interfaces in both Gen3 standards. The PCIe is more reliable and faster, fully meeting signal requirements of PCIe 3.0 Support PCIE 1x interfaces card to use for RPi, such as Networking card, sound card, data acquisition card and so on. Fully suitable for RPi models that have the 40pin GPIO header. Transform your solution into systems with our PCIe expansion card, where functionality meets innovation. Specifications: Component:ABS Size:Approx.6.5x5.6cm/2.56x2.2inch Package Includes: 1Pc PCIe X1 Adapter 1Pc Screw Driver 4Pcs Nut 1Pc FFC Cable 8Pcs Black Screw 2Pcs Screw 1Pc Extender note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.