Introduction : EXP GDC is the laptop external graphics adapter equipment; it can help you to use the external independent high-performance graphics, can be used to acce any of the PCI-E interface equipment, used to enhance the performance of the laptop, so that you can play those huge games requesting high-performance graphics. About display : If you use the notebook;s own display, you need the notebook to bring in Intel (R) HD Graphics, and externally connect GTS450 and above Nvidia graphics card. Otherwise an external monitor is required) About the Interface : Generally, the notebook needs to be disaembled to use the wirele network interface. There are two types of MINI PCI-E or NGFF. Please take care to disaemble and verify which interface is placed. EXPRESSCARD (not SD card reader interface) interface is generally on the left and right sides of the notebook, the width is 3.4CM or 5.4CM, the height is 5MM, the depth is 7CM, pay attention to the screening. Power and Graphics Card Selection: You need to purchase desktop power supply to supply power to the graphics card (external graphics card can not be powered by laptop power supply, otherwise the consequences of burning will be at your own risk.) According to the actual power consumption of your graphics card, it is recommended to use the brand power supply rated above 350W, do not use the cottage or namele Power supply, the purchased power supply must meet the requirements of the independent power supply interface of the graphics card (refer to the product information below the specific power supply reference) It is recommended that you choose a graphics card that meets the requirements of your game. (For example: your game requirements are GTX750, then it is recommended to buy GTX760.) It is recommended to use mainstream graphics cards such as ASUS, Gigabyte, MSI, GALAXY and Colorful, and the compatibility is relatively better. GTX1030, GTX1050 (Ti), GTX1065, GTX1070Ti, GTX1080Ti. These six models are not supported well and are not recommended. Performance Play: Use MINI PCI-E, EXPRESSCARD, NGFF (M.2) A / E key three interfaces. Generally, the notebook internal screen (using a notebook display) plays about 60%, and the external screen (external display on an external graphics card) plays about 80%. The specific performance play has a great relationship with the game (software) optimization. If the game is optimized for bandwidth utilization. The rate is high and the performance will be better. The performance of the NGFF (M.2) M key (SSD interface supporting NVME) is good and there is basically no lo. This product is a DIY type computer acceory. It needs to have certain hands-on ability and computer foundation. Please purchase and use the product according to the product manual. If the device is damaged due to incorrect installation, you are responsible for it. This device has a laptop compatibility risk, so the return buyer will have to bear the return shipping cost. ATX power connection diagram: 4P line is connected to the CPU power supply line (two yellow and two black, there is CPU power is 8P, can be split into 4P). Do not connect the four lines of yellow, red, orange and black on the side of the 24P port, or you will burn the power or graphics card. Soppot list:(Thefollowingmodelisourcustomerfeedbacktousthattheyuseandwithoutproblem) FORLENOVOW530\T520\W520\X220\X220T\Z570\T420\Y460\Y560P\T410\E420\X201\X201s\FORFOREDGE 14\T410s\T400\T510\X201T\X200\W500\T61p\X61T\T61\T60\T520\T420S\y470\T420I\Y480\G480\k580s \E520\Y580\G500\E46A\Y530\G510\Y400\G500\V460\Y560P\y480n\y480\E420\K29\B470\Z470\L421\ SL410K\E420S\G470\G450\z465\Y500\V370\G430\Z370\Y485\Y410P\v1000\s410p\y471a\s230u\V570\ e420s\Z500\V470\Y4070\G710AT-ISE\y430p\S400\SR1000\B5400\405SA8\Y50\Z501\Z480\Z580\U310\K46A\z380FORDELLE6520\Vostro3450\XPS15.L502\Studio1557\E6220\M4500\E6420\E4300\Studio1557\XPS1645\E4310\M4600\Insp. 1545\XPS1340\E4300\XPS1640\E6500\Insp1420\XPS1340\Vostro1500\1440\Vostrov130\XPSM1530\D830\M1330\Studio1555\Insp1520\Vostro1310\E1505\1545\E6520\E6520\E6220\E5410\E4310\E6410\14R\M1210\4600M\D630\E6420\6320\N4120\N5010\3421\N3010\7720\14R\4728\1520\14rd658\N4110\14RD658\inspiron15-3521\e6320\7420\5537\xps1645\15r7520\7670\15R4526\5547\7730\14R5420\M6600\7520\5537\4050\vostro3300\n3420\L702X\3542\1558\157548\4z-5423\E6230FORSONYZ21\VPC-Z11\VPC-Z13\VPC-Z12\VGN-FW45\Z46GD\VGN-NS110e\EA27EC\VPCCA36EC\EA47EC\CB36EC\ Nw35e\EA200C\S138\Vgn-nw71fb\SVT11138CCS\vpcs128ec\FW17\Z45\vpcea25fg\vpcea18ec\VPCEB26FX\VPCZ138GG\sve14a28ccs\Pcg-71212t\SVE141FORHP4530s\2560P\8460P\4330s\2540P\8440P\DV4-2000\2530P\2740P\6930P\6930P\2730P\HDX9000\Pavilion DV4\DV9690en\CQ60\DV71267CL\HDX16\HDX18T\TX2\2510P\DV7-3020ED\DV2000\dv2416US\6910P\ NC6400\2133\4530s\FORFORHP8440p\14beats\G42\DV5\1220TX\N5110\8570P\CQ35-219TX\DV2804TX\CQ45\CQ40\ CQ42285TX\8560P\2730p\4321s\DV7\FORFORHP4431\8470P\2570P\envy17j120us\FORFORH