Pls note:This cable does not support the notebook external graphics card! Specifications:Product name: M.2-M key/NVME to PCIe x16 Graphics Adapter Extension CableProduct model: R43SF Flat / R43SL ReverseConnector 1: PCIe x16Connector 2: M.2 NVMe M-keyWire length: 10 ~ 100 cm, the length can be customized, welcome to contact our Customer service.Suitable graphics card: GTX1080ti High-end graphics CARDS, fireprow7100, radeon RX580, VEGA64, prowx5100, quadroK1200 professional graphics card, support for all the PCIe CARDS after 2015 yearsThe length of the wire instructions:Our wire length refers to the visual wire part, does not include the PCB and connector.The following models for R43SR - 8 cm, refer to the below dimension.Notice:1. You must identify the direction when you plug in this cable. Don?t reverse insert and bend, prevent burning equipment.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.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.4. Only use for product testing, If other purposes or don't have DIY ability, please don't buy.5. Only supports one gap M-key NVMe SSD, Don't support two gaps BM-key SATA SSD.