Basic connector instructions

Connector	Description

Microphone	Use this connector to attach a microphone to your
	computer when you want to record sound or if you
	use speech-recognition software.

Headphone	Use this connector to attach headphones to your
	computer when you want to listen to music or
	other sounds without disturbing anyone.

Audio line-in connector	Used to receive audio signals from an external
	audio device, such as a stereo system. When
	you attach an external audio device, a cable is
	connected between the audio line-out connector
	of the device and the audio line-in connector of
	the computer.

Audio line-out connector	Used to send audio signals from the computer
	to external devices, such as powered stereo
	speakers (speakers with built-in amplifiers),
	headphones, multimedia keyboards, or the audio
	line-in connector on a stereo system or other
	external recording device.

USB connector	Use this connector to attach a device that requires
	a USB connection.

Ethernet connector	Use this connector to attach the computer to an
	Ethernet-type local area network.

VGA connector	Used to attach a VGA monitor or other devices
	that use a VGA monitor connector.

DVI connector	Used to attach a DVI monitor or other devices that
	use a DVI monitor connector.

HDMI connector (optional)	Connects to the HDMI connector on your display
	or TV.

TV-Tuner connector (optional)	Only supported on systems with an optional TV
	tuner card.

Note: If your computer is equipped with a wireless keyboard or mouse, follow the installation instructions for those devices.

6User Guide

1196, 1194, 10080, 3099, 10091 specifications

Lenovo has established a reputation for crafting reliable and high-performing devices tailored for both personal and professional use. Among its diverse portfolio, the Lenovo 57312709, 2558, 57RF0010, 57312430, and B540 models stand out for their innovative features and solid performance.

The Lenovo 57312709 model is designed primarily for business professionals. Its robust build quality ensures durability, making it ideal for users who are frequently on the move. This laptop boasts a sunlit-readable display, combined with anti-glare technology to enhance visibility in various lighting conditions. Powered by cutting-edge processors, it delivers efficient multitasking while optimizing energy consumption.

Next, the Lenovo 2558 model is renowned for its versatility. It combines a sleek design with commendable performance. The device is equipped with a high-resolution screen that produces vivid colors and sharp images, which is perfect for multimedia consumption. Its enhanced audio system provides immersive sound quality, making it suitable for entertainment purposes as well as professional presentations.

The Lenovo 57RF0010 is actionable in terms of connectivity, featuring multiple USB ports, HDMI support, and wireless capabilities that keep users connected to networks and peripherals seamlessly. This model supports fast data transfer technology, further simplifying tasks such as file sharing and backups.

Meanwhile, the Lenovo 57312430 caters to gamers and heavy software users. It is equipped with a dedicated GPU that amplifies graphical performance, allowing for smooth gameplay and efficient running of resource-intensive applications. Its cooling system is optimized to prevent overheating during extended usage, preserving both performance and longevity.

Lastly, the Lenovo B540, a hybrid laptop model, blends the functionality of a traditional laptop with the convenience of a touchscreen tablet. Its 360-degree hinge allows users to configure the device into various modes, providing flexibility for different use cases, whether for work, study, or leisure. The B540 also incorporates stylus support, enhancing creativity and productivity for art and design tasks.

Together, these Lenovo models reflect the company's commitment to innovation, user-centric design, and advanced technology. With a focus on performance, versatility, and practicality, they cater to a wide range of needs, from business to gaming and beyond, making Lenovo a trusted choice in today’s tech landscape.