Features: 1.Support high?speed PCI?E 1X, 4X, 8X and 16X cards, but only work at 1X speed. 2.The PCI-E card has a dual vertical 90 direction design, which is easy to install and does not require any soft driver. 3.Using soft and compact flexible cable, suitable for 1U, 2U and for ATX / BTX chassis. 4.Adopt golden finger protective cover and dustproof design for high frequency and low attenuation. 5.High transmission rate, stable PCIe Gen3 8Gbps or higher rate, with axial cable. specification:Item Type: Extension Cable Material: PE+tinned copper+TPE Support high-speed PCI-E 1X, 4X, 8X and 16X cards, but only work at 1X speed PCI-E card has a new design with dual vertical 90 directions Installation Notes: 1. Before installation, make sure that the motherboard, graphics card and other PCI-E interface cards are in a power-off state. 2. In order to prevent static electricity from damaging the motherboard and the electronic components on the graphics card, please wear static clothes and anti-static wristbands when installing. If you don't have static clothes and wristbands, please touch the grounded metal objects with your hands before installation to discharge human body static electricity. 3. Before the installation is completed, do not turn on the power to start the computer, this operation may cause damage to the motherboard and graphics card. 4. Please refer to the installation guide for installation. 5. Please keep the motherboard and graphics card away from humid air and dust in order to prolong its service life. Size: Approx. 52 x 90mm / 2 x 3.5in 25mm / 1in 11.3mm / 0.4in 52mm / 2in 44.83mm / 1.8in 15.25mm / 0.6in 1.37mm / 0.1in PackageList:1 x Extension Cable 1 x User Manual Note1. Before installation, make sure that the motherboard, graphics card and other PCI?E interface cards are in a power?off state. 2. In order to prevent static electricity from damaging the motherboard and the electronic components on the graphics card, please wear static clothes and anti?static wristbands when installing. If you don't have static clothes and wristbands, please touch the grounded metal objects with your hands before installation to discharge human body static electricity. 3. Before the installation is completed, do not turn on the power to start the computer, this operation may cause damage to the motherboard and graphics card. 4. Please refer to the installation guide for installation. 5. Please keep the motherboard and graphics card away from humid air and dust in order to prolong its service life.