RX550 4G D5 Graphics Card GDDR5 1183 6000MHz 128bit Supports Displayport 1.4 HDR HD Multimedia Interface 4K60 DVI D Game Graphics Card Item Type: RX550 4G D5 Graphics Card Material: PCB, Metal Aluminum Model: RX550 4G D5 Extreme Edition Core Codename and Process: RX550 14nm Unified Shaders: 215 Core Frequency: 1183MHz Memory Frequency: 6000MHz Memory Capacity and Specification: 4G 128bit GDDR5 3D Features: for DirectX 12, for Mantle, for OpenGL 4.5 OS Features: for Windows 7(64), for Windows 10(64), for Ubuntu16.04(64) Cooler: Y8I 64 X Fan (No Copper Pipe, No Light) Fan Features: 2Pin, Adjustable Speed, no RPM Value Displayed Bus Interface: PCI Express 3.0 x8 Output Interface: Displayport(1.4 HDR), HD Multimedia Interface (4K60), DVI D Maximum Resolution: 3840 x 2160 60Hz (Displayport HD Multimedia Interface) Sli( (NVLINK)/ Crossfire: Not Supported Power Supply Design: 3 Phase Circuit External Power Supply: None Driver Installation: 1. The driver installation of the graphics card is required to be done at the first boot up after the hardware installation of the graphics card is completed. 2.  graphics cards are divided into two series of products according to chipsets: "for AMD", please select the appropriate driver installation according to the actual product information, and you can complete the driver installation according to the following steps: Step 1: After system startup, enter the official website, and then click into the product center. Step 2: Check the model number on the box or the product nameplate on the back of the card. If the model number of your graphics card; if the model number of your graphics card begins with RX R, click "for AMD series" Step 3: According to the specific model number of your graphics card, go to the corresponding product page, click "Driver Download", and download the corresponding driver according to the version of the operating system that you have installed. Download the corresponding driver according to the version of the operating system you have installed. Step 4: After the driver download is complete, double click the file to start the installation, please follow the instructions of the installation wizard to install. Please follow the instructions of the installation wizard.