3

Serial Ultrabayenhanced

Your computer has a bay for Serial Ultrabay Enhanced devices. An optical drive is installed in the bay.

Note: You can install a 9.5-mm-thick serial Ultrabay slim or a 12.7-mm-thick serial Ultrabay enhanced device in the serial Ultrabay enhanced.

4

Combo audio jack

To listen to the sound from your computer, connect a headphone or a headset that has a 3.5mm 4-pole plug to the combo audio jack.

Notes:

If you are using a headset with a function switch, for example, a headset for an iPhone® mobile digital device, do not press this switch while using the headset. If you press it, the headset microphone will be disabled, and the internal microphone will be enabled instead.

The combo audio jack does not support a conventional microphone. For more information about the audio devices supported by the combo audio jack of your computer and the audio jacks of ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3, and ThinkPad Mini Dock Plus Series 3 (170 W), see “Using audio features” on page 85.

5

ExpressCard slot

Your computer has an ExpressCard slot for a 34 mm-wide card.

For details, refer to the instructions in “Using an ExpressCard, a smart card, or a flash media Card” on page 87.

6

Media card reader slot

Depending on the model, your computer may have a media card reader slot. The media card reader supports the following cards:

SD card

SDHC card

SDXC card

MultiMediaCard

Note: Your computer does not support the CPRM feature for SD card.

For details, refer to the instructions in “Using an ExpressCard, a smart card, or a flash media card” on page 87.

Chapter 1. Product Overview 7

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Lenovo 42825BU, NVS-4200M, 4242X04 Serial Ultrabay enhanced, Combo audio jack, ExpressCard slot, Media card reader slot

4242X04, NVS-4200M, 42421A0, 42825BU specifications

Lenovo offers a diverse range of products tailored to meet the needs of professionals and consumers alike. Among them, models such as the Lenovo 42825BU, 42421A0, and 4242X04 stand out with impressive specifications that cater to various use cases.

The Lenovo 42825BU is an excellent choice for those seeking a dependable laptop for general productivity tasks. Powered by the latest generation Intel Core processor, it ensures smooth performance whether you're working on spreadsheets, attending virtual meetings, or browsing the web. One of its standout features is the high-resolution display that delivers vivid colors and sharp images, making it perfect for graphic design work or watching videos. Furthermore, the device includes ample RAM, allowing for multitasking without lag and enhancing overall efficiency.

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The 4242X04 model takes portability to another level without sacrificing power, making it ideal for on-the-go professionals. With a lightweight design and long battery life, it allows users to work from anywhere without the constant need for a power source. Coupled with fast charging technology, users can quickly recharge their devices during breaks, ensuring minimal downtime.

All these Lenovo models are built with reliability and durability in mind, often featuring robust chassis that can endure daily wear and tear. Additionally, they incorporate various security features including biometric login options, enabling safe and secure access to sensitive data.

In summary, the Lenovo 42825BU, 42421A0, and 4242X04 laptops are designed to meet the demands of a diverse user base. With powerful processing capabilities, impressive graphics performance, and features designed for portability and durability, these models are well-suited for both professional and personal use.