Yeston GT730-4G 4HD 4-Screen Graphics Card 4G/128bit/DDR3 Memory Support Split Screen 10bit Color Depth with 4 HD 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. 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. Support 4K/2K/1080P resolution, 60Hz refresh rate. Support HD to VGA, HD to DVI-D display output, can connect more devices. The full-size metal backplate offers all-round conservation to the electrical components, ensuring its stability and durability.  Specification: Brand: Yeston  Model: GT730-4G 4HD Core name/Process: GK107/28nm Core clock: 993MHz Memory core clock: 1600MHz Memory: 4G/128bit/DDR3 3D features: DirectX 11/OpenGL 4.6 OS features: Windows 7/Windows 10(32&64) Radiator: YDP18-A Interface type: PCI-Express 2.0x16 Output interface: HD*4 Item size: 17 * 10.7 * 1.8cm /6.69 * 4.21 * 0.71in Item weight: Approx. 259g /9.14oz Packing list: 1 * Graphic Card 1 * User Manual