Product name: PCIe graphics card extension cord<br> Product model: R52SF R52SL R52SR<br> Connector 1:  PCIe x4<br> Connector 2:  M.2 WiFi A.E key<br> Wire length: 5 ~ 100cm<br> The length of the wire instructions:Our wire length refers to the visual wire part, does not include the PCB and connector.<br> <br> <strong>Purchase Notice:</strong><br> 1. You must identify the direction when you plug in this cable. Don?t reverse insert and bend, prevent burning equipment.<br> 2. All kinds of Motherboard and equipment condition such as signal driving ability is different, the results of our test does not guarantee that it is the same as your test results. You need to know, as long as using a extension cable, the signal will have a loss. The buyer who requires perfectly, please don't buy.<br> 3. The graphics card or motherboard is an electronic equipment which will increase over time and oxidative aging. It will become more unstable if plug in an extension cable. Does not support the old equipment. The device which is more than four years, please don't buy.<br> 4. Only use for product testing, If other purposes or don't have DIY ability, please don't buy.<br> 5. Please confirm your equipment and the motherboard system compatibility, Our cable only supports M.2 WiFi interface (A.E.Key), please confirm whether your motherboard has a M.2 WiFi interface, if can't confirm, please do not buy.<br> 6. The laptop of HP and Lenovo these two brands have BIOS compatible problems, it may cause your network card cannot be used.Please confirm your laptop and network card compatibility, if cannot confirm, please do not buy.