In today’s world of digital displays, projectors, and interactive screens, the VGA connector remains an essential interface for transmitting video signals. Although newer standards like HDMI, DisplayPort, and USB-C have become mainstream, the VGA connector still plays an important role in many business, educational, and industrial applications.
At Qtenboard, we provide high-quality devices compatible with VGA connectors, including LCD display screens, interactive whiteboards, digital signage, kiosks, video walls, and more. Whether your business needs cost-effective solutions for classrooms, conference rooms, or digital signage, our VGA-compatible products ensure reliable signal transmission and professional display quality.
This article will provide a comprehensive explanation of VGA connectors, their types, uses, advantages, differences with HDMI, and why choosing Qtenboard solutions can benefit your business.

A VGA connector, also known as a D-SUB connector, was first introduced in 1987 and quickly became the industry standard for analog video transmission. It is commonly found on computers, projectors, video walls, digital signage, and other electronic display devices.
Typically, a VGA connector has 15 pins arranged in three rows of five, enabling the transmission of analog video signals between connected devices. Despite being an older technology, its robust compatibility and ease of use make it still valuable in modern digital display setups.
The VGA connector is trapezoidal in shape. Male connectors feature two screws on either side to secure the connection, while female connectors have corresponding screw holes.
The 15 pins have specific functions:
This design allows for a stable analog video signal connection between a computer, projector, or display screen.
The primary purpose of a VGA connector is to transfer video signals from one device to another. It is widely used in:
For example, in a conference room, you can use a VGA connector to project your computer’s presentation, PPT, or images onto a large display screen. Similarly, if your digital signage needs to show product videos, a VGA connector ensures smooth video transmission.
At Qtenboard, our VGA-compatible displays, including LCD videowalls and interactive screens, allow businesses to deliver content clearly, whether in classrooms, offices, or retail environments.

VGA connectors come in various types to suit different applications:
These options provide flexibility depending on display location, space constraints, and application needs.

Using a VGA connector offers several advantages:
VGA connectors are widely supported across computers, projectors, digital signage, and LCD displays. This makes them ideal for enterprise offices, classrooms, or retail environments.
With mature production processes, VGA connectors are inexpensive to manufacture, replace, and maintain. They offer a cost-effective solution for businesses requiring stable video signal transmission.
VGA connectors transmit analog video signals with minimal latency, making them suitable for presentations, digital signage, and video walls.
At Qtenboard, we integrate VGA connectors into our high-quality display products, ensuring compatibility and reliable performance for all your business applications.
While HDMI has become mainstream, VGA connectors remain relevant for certain applications. The key differences include:
| ฟีเจอร์ | VGA Connector | HDMI Connector |
|---|---|---|
| Signal Type | Analog video | Digital video & audio |
| Pins | 15 | 19 |
| Cable Thickness | Thicker | Thinner |
| Resolution Support | Supports high resolution but may degrade | 720P to 8K, high-quality |
| Use Case | Office, projectors, classrooms, video walls | High-definition TVs, theater systems, modern LED displays |
VGA is ideal for scenarios where audio is not required or cost-effective solutions are needed, while HDMI is suited for high-resolution multimedia with audio.
Qtenboard offers a range of VGA-compatible displays, including:
Advantages of choosing Qtenboard:
By choosing Qtenboard VGA-compatible displays, you ensure your content is presented clearly, with consistent color and brightness across multiple screens.
Although HDMI and other modern connectors dominate the market, the VGA connector remains a valuable option due to its strong compatibility, affordability, and reliability. Whether connecting computers, projectors, video walls, or digital signage, VGA ensures smooth video transmission.
Qtenboard’s VGA-compatible solutions, including LCD videowalls, interactive displays, and digital signage, offer businesses professional-quality display performance, easy installation, and 24/7 support. With Qtenboard, you can deliver high-quality visual content to your audience while keeping costs manageable.
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