Where can I buy a laptop graphics card?

Only the notebook graphics card with MXM slot specifications can be replaced. If it is not this interface, there is no way to upgrade. You can find a unique notebook in Taobao or the local computer city. General e-commerce companies, such as JD.COM and Newegg, will not offer mobile graphics cards for sale. But before you go, you should be mentally prepared. First of all, you need to find a suitable monitor, which may be very expensive. Secondly, it is easy to have poor compatibility after replacement, because at the beginning of listing, the motherboard of notebook is customized for hardware when it leaves the factory. After replacing the graphics card, the motherboard may not be able to provide good support for the hardware. At this point, notebooks and desktops are different. For the upgrade of notebook graphics cards, it is not absolutely impossible to change them, but the cost and risk are relatively high.