# Video output port resolution

The video output port's ** resolution** (also known as frame size or display mode) defines the number of pixels displayed horizontally and vertically. For example, the resolution 1920×1080 (1080p) produces an image that is 1920 pixels wide by 1080 pixels tall.

Pearl-2s always assume that the output display uses square pixels.

The** aspect ratio** (eg. 4:3 or 16:9) describes the proportional relationship between the video output's pixel width and height. The resolution 1920×1080 (1080p), for example, is quite a bit wider than it is tall. The ratio of its width to height is 16 to 9, which has an aspect ratio that is 16:9.

By default, you can choose from the following output resolutions for your video output ports, but you can also change settings to allow a variety of other resolutions through.

Aspect ratio legend

| **Aspect Ratio** | **Common Use** |
| --- | --- |
| **4:3** | Standard TV (NTSC/PAL) display and non-widescreen computer displays |
| **16:9** | Widescreen (HD) TV displays (1080p, 1080i, 720p etc), and 4K-capable displays |
| **16:10 (8:5)** | Widescreen computer displays, and 4K-capable displays |
| **5:4** | Sometimes used in larger format computer monitors |
| **1.90:1** | Digital Cinema Initiatives standard resolution for 4K or 2K video projection |

Resolutions

| **640×360** | **640×480** | **960×540** | **1024×768** |
| --- | --- | --- | --- |
| **1280×720** | **1280×1024** | **1600×1200** | **1920×1080** |
| **1920×1200** | **2560×1440** | **3840×2160 (4K UHD)** | **4096×2160 (4K DCI)** |

> product: pearl-2 · topic: specs-ports · source: pearl-2-userguide.md · updated: Oct 13, 2026