Lenovo IdeaCentre B520 31111NU All-in-One Computer - Intel Core i5 i5-2400S 2.50 GHz - Desktop - Black
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Product Information for Lenovo IdeaCentre B520 31111NU All-in-One Computer - Intel Core i5 i5-2400S 2.50 GHz - Desktop - Black

Highlights for Lenovo IdeaCentre B520 31111NU All-in-One Computer - Intel Core i5 i5-2400S 2.50 GHz - Desktop - Black

Marketing Information

A powerful 23" all-in-one PC that uniquely combines a frameless screen with state-of-the-art multi-touch and 3D vision

The IdeaCentre B520 combines a gorgeous 23" frameless display with state-of-the-art features like multi-touch and 3D vision. Bring movies and games alive with true-to-life audio thanks to integrated 5.0 channel speakers supporting SRS Premium Sound. With the optional 3in1 Mouse that doubles up as a motion-drive games controller, plus the combination of powerful graphics and the 2nd generation Intel Core i5 processor, the B520 is perhaps the ultimate all-in-one entertainment PC. Plus, Lenovo Enhanced Experience 2.0 for Windows 7, with optional RapidDrive SSD technology, lets you boot Windows 7 in as little as 20.5 seconds, and start your favorite applications 2x quicker.

Battery Information

I/O Expansions

Input Devices

  • Keyboard: Yes
  • Pointing Device Type: Mouse
  • Memory

  • Maximum Memory: 8 GB
  • Standard Memory: 4 GB
  • Memory Technology: DDR3 SDRAM
  • Memory Standard: DDR3-1333/PC3-10600
  • Miscellaneous

    Package Contents

    • IdeaCentre B520 31111NU All-in-One Computer
    • Keyboard
    • Mouse

    Network & Communication

  • Ethernet Technology: Gigabit Ethernet
  • Physical Characteristics

  • Color: Black
  • Form Factor: Desktop
  • Height: 22.4"
  • Depth: 16.8"
  • Power Description


  • Optical Drive Type: DVD-Writer
  • Hard Drive Interface: Serial ATA
  • Hard Drive RPM: 7200
  • Total Hard Drive Capacity: 1 TB
  • Processor & Chipset

  • Cache: 6 MB
  • Processor Speed: 2.50 GHz
  • Processor Type: Core i5
  • Processor Model: i5-2400S
  • Processor Core: Quad-core (4 Core)
  • 64-bit Processing: Yes
  • Processor Manufacturer: Intel
  • Number of Processors Supported: 1
  • Number of Processors Installed: 1
  • Hyper-Threading: No
  • Direct Media Interface: 5 GT/s
  • Software

  • Operating System: Windows 7 Home Premium
  • Operating System Architecture: 64-bit
  • Operating System Platform: Windows
  • Warranty

    Additional Product Specifications

    Built-in Devices


  • Network (RJ-45): Yes
  • Audio Line In: Yes
  • Audio Line Out: Yes
  • Total Number of USB Ports: 6
  • Number of USB 2.0 Ports: 4
  • Controllers

  • Controller Type: Serial ATA
  • Display & Graphics

  • Aspect Ratio: 16:9
  • Screen Resolution: 1920 x 1080
  • Screen Size: 23"
  • Screen Mode: Full HD
  • Graphics Controller Manufacturer: Intel
  • Graphics Controller Model: HD 2000
  • Graphics Memory Technology: DDR3 SDRAM
  • Graphics Memory Accessibility: Shared
  • Display Screen Type: Active Matrix TFT Color LCD
  • General Information

  • Product Type: All-in-One Computer
  • Manufacturer Part Number: 31111NU
  • Manufacturer Website Address: http://www.lenovo.com/us/en/
  • Manufacturer: Lenovo Group Limited
  • Product Model: 31111NU
  • Product Name: IdeaCentre B520 31111NU All-in-One Computer
  • Product Line: IdeaCentre
  • Product Series: B520
  • Brand Name: Lenovo
  • I/O Expansions

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    • Place Your Ideas Where They Belong. At Your Fingertips.

    • Reclaim your space in style.

      We love the IdeaCentre B520 all-in-one, touchscreen desktop. And while it packs a lot of power, it won't take over your desk. This top-of-the-line B520 touchscreen PC includes more multimedia features than you could ever dream of. And it's all cleverly concealed in an all-in-one, lean, PC-package. We hope you'll also like it's modern, edgy look. It's more than handsome. It's a multimedia beast.

      With the B520, you can venture into an entirely new, HD entertainment zone. It's so thin you can put it anywhere. Display it like a TV in your family or living room, or, turn your room or dorm into a sweet, multimedia haven. Share it with family, friends or keep it all to yourself, we won't tell.

      • Indulge yourself with a brilliant 23" cinema-quality widescreen.
      • Experience the simplicity of the Lenovo NaturalTouch multi-touch screen
      • Avoid the hassle of tangled cords with this simple box-to-boot set up.
      • Plug this handy, versatile, discrete device in any room.
      • Mount your B520 all-in-one on the wall to create your own home theater.
      • Show off with its cool, contemporary design you won't find anywhere else. 
    • Fast, lean, and fun.

      With the IdeaCentre B520 all-in-one, you will enjoy nimble processing, hard drive disc space galore and memory a-plenty not to mention HD graphics. Other impressive features include Full HD output, touch screen technology and of course, a space-saving design makes the B520 all the more appealing.

      Into video? You'll find editing video and photos effortless, downloading movies, streaming and enjoying your music library sheer digital bliss. Don't you just love it when function and form unite? Especially in a PC.

      • Designed with a brilliant HD LED 23" display
      • Connect it to your TV and output to a larger screen.
      • Stream music, video and music all day or all night.
      • Indulge in life-like, theater-level picture quality.
      • Turn your computer into a TV with the TV tuner. How cool is that?
      • Crisp speakers and superior SRS® Premium surround sound.Integrated DVD
      • Zippy, stutter-free wireless connectivity and internet playback. 
    • Simplify.

      The IdeaCentre B520 Touchscreen All-in-One is also packed with useful features, apps and ports.

      • Lenovo® Dynamic Brightness System – protects your eyes by automatically adjusting screen brightness based on ambient light conditions.
      • Lenovo® Eye Distance System – alerts if you are too close to the screen
      • Lenovo® Rescue System makes data backup and recovery simple so you can spend time on more enjoyable tasks.
      • YouCam – advanced webcam software for facial tracking and image effects.
      • Lenovo Camera Fun Zone - see yourself on screen and move your hands to interact with these fun games.
      • HDMI for connecting to other high-definition devices.
      • Integrated TV tuner2 x USB 3.0 ports (rear 2), 4 x USB 2.0 ports (rear 2, side 2) ethernet, microphone input jack, Headphone jack, 5-in-1 card reader
    • Space-saving
    • Faster and optimized for multimedia Lenovo Enhanced Experience 2.0 for Windows® uses RapidBoot technology to start your PC on average 20 seconds faster than a typical Windows 7 computer*. And with HD graphics and enhanced digital audio for immersive, crystal-clear sound, you'll enjoy the best possible multimedia experience.
    • Multi-touch display
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