Yeston RX550-2G 4HD 4-Screen Graphics Card Support Split Screen 10bit Color Depth HDR 2G/128bit/GDDR5 Memory 4 HD Output Ports Features:  4 HD ports support 4 split screens display and realize free combination of 4 screens, you can adjust freely between extended mode, replication mode and integration mode. Support 4K/2K/1080P resolution, 60Hz refresh rate. This graphics card supports 10bit color depth, richer color class, more natural transition. Support HDR technology, significantly improve the picture clarity, brightness, color, excellent presentation of dark and bright details. It can transfer to VGA, DVI-D display output, can connect more devices. The full-size metal backplate offers all-round protection to the electrical components, ensuring its stability and durability.  Specification:  Brand: Yeston  Model: RX550-2G 4HD Core name/Process: RX550/14nm Cores: 512 units Core frequency/Memory frequency: 1183/6000MHz Memory: 2G/128bit/GDDR5 3D features: DirectX 12/Mantle/OpenGL 4.5 OS features: Windows 7(64)/Windows 10(64) Radiator: YDP19-C Interface type: PCI-Express 3.0 x8 Output interface: HD*4 Item size: 17 * 10.7 * 1.8cm /6.69 * 4.21 * 0.71in Item weight: Approx. 248g /8.75oz Packing list: 1 * Graphic Card 1 * User Manual