External devices

Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician.

CAUTION:

Do not connect or disconnect any external device cables other than USB while the computer power is on; otherwise, you might damage your computer. To avoid possible damage to attached devices, wait at least five seconds after the computer is shut down to disconnect external devices.

Notice for lithium coin cell battery

DANGER

Danger of explosion if battery is incorrectly replaced.

Do not:

•Throw or immerse into water

•Heat to more than 100°C (212°F)

•Repair or disassemble

Dispose of the battery as required by local ordinances or regulations.

The following statement applies to users in the state of California, U.S.A.

California Perchlorate Information:

Products containing manganese dioxide lithium coin cell batteries may contain perchlorate.

Perchlorate Material - special handling may apply, See

www.dtsc.ca.gov/hazardouswaste/perchlorate

Notice for built-in rechargeable batteries

DANGER

Do not attempt to replace the internal rechargeable lithium batteries. Contact Lenovo Support for factory replacement.

Heat and product ventilation

DANGER

Computers, ac power adapters, and many accessories can generate heat when turned on and when batteries are charging. Notebook computers can generate a significant amount of heat due to their compact size. Always follow these basic precautions:

•When your computer is turned on or the battery is charging, the base, the palm rest, and some other parts may become hot. Avoid keeping your hands, your lap, or any other part of your body in contact with a hot section of the computer for any extended length of time. When you use the keyboard, avoid keeping your palms on the palm rest for a prolonged period of time.

xUser Guide

I53427U180SSD, I53427U4GB, X1, 3444GXU, 3444GZU specifications

Lenovo has established a reputation for delivering high-performance laptops suited for both personal and professional use. Among its notable offerings are the Lenovo 3444GZU and 3444GXU, as well as their flagship ThinkPad series, which includes models like the X1 and I53427U4GB, I53427U180SSD. Each of these models comes equipped with advanced technologies and features that cater to a wide range of user needs.

The Lenovo 3444GZU and 3444GXU are known for their robust build quality and portability. Both laptops are powered by the latest generation of Intel processors, delivering fast and reliable performance. With up to 8 GB of RAM, they can handle multitasking efficiently, allowing users to run multiple applications simultaneously without experiencing lag. Additionally, these models boast a high-resolution display that provides sharp visuals, making them ideal for watching videos or handling graphic-intensive tasks.

The ThinkPad X1 series exemplifies Lenovo's commitment to creating premium laptops designed for the business professional. Known for their exceptional keyboard comfort and durability, these laptops are equipped with features such as a lightweight carbon-fiber chassis, making them easy to carry. With powerful Intel processors and up to 16 GB of RAM, the X1 delivers outstanding performance for demanding applications. The high-definition display offers vibrant colors and excellent viewing angles, essential for presentations or creative work.

The I53427U4GB and I53427U180SSD models represent Lenovo's dedication to providing users with flexibility and speed. Featuring SSD storage, these laptops significantly reduce boot times and application loading, enhancing user experience. Both models offer ample connectivity options, including USB 3.0 ports, HDMI outputs, and support for Bluetooth, facilitating easy connection to various peripherals and devices.

Furthermore, Lenovo’s laptops come with robust security features such as fingerprint readers and TPM encryption technology, ensuring that user data remains protected. With long battery life, these devices are designed to support users on the go without the constant need to recharge.

In summary, the Lenovo 3444GZU, 3444GXU, X1, I53427U4GB, and I53427U180SSD represent a blend of performance, portability, and security, making them excellent choices for both everyday users and professionals in need of reliable computing solutions.

Lenovo I53427U180SSD, X1, I53427U4GB, 3444GZU manual External devices, Heat and product ventilation

Models: I53427U180SSD I53427U4GB X1 3444GXU 3444GZU