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Lenovo 4178A49

Lenovo ThinkPad T420 - 14.0" HD AG Display, Core i5-2520M Processor, 4 GB RAM, Intel HD Graphics 3000, 160GB SSD Hard Drive, WWAN Ready, Intel 6205 AGN WLAN, 6 Cell Battery, Win 7 Pro 64 OS, Bluetooth, Webcam, Fingerprint Reader
Perfectly portable

The Lenovo ThinkPad T420 maintains the industry-leading innovation of the ThinkPad notebook portfolio, while incorporating new advanced industry technologies. The ThinkPad T420 features the perfect balance of mobility, manageability, and security the best mix available for any enterprise-class deployment for under 5 lbs. The ThinkPad T420 also provides up to 9 hours of battery life with our base 6-cell battery option. Upgraded 9-cell battery provides up to 15 hours of untethered mobile use. You can even squeeze out a little extra battery life in extreme circumstances using the Battery Stretch feature of Lenovo's Power Manager utility. The ThinkPad T420 projects text, images and video in stark clarity on a 14.1-inch backlit display making it the next best thing to being face-to-face. It also provides an integrated low-light sensitive 720p HD webcam, dual-digital microphone configurations for crystal-clear private and conference mode VoIP meetings, and keyboard noise suppression technology make clear communication a given.

General Information

  • Product Type: Notebook
  • Product Series: T420
  • Brand Name: Lenovo
  • Manufacturer: Lenovo Group Limited
  • Product Model: 4178A49
  • Product Name: ThinkPad T420 4178A49 Notebook
  • Product Line: ThinkPad

Physical Characteristics

  • Height: 1.2"
  • Width: 13.4"
  • Depth: 9.2"
  • Color: Black


  • eSATA/USB Combo: Yes
  • DisplayPort: Yes
  • Total Number of USB Ports: 4
  • VGA: Yes
  • Network (RJ-45): Yes
  • Audio Line Out: Yes
  • Number of USB 2.0 Ports: 4


  • Green Compliant: Yes
  • Green Compliance Certificate/Authority:
    • RoHS
    • EPEAT Gold
  • Package Contents:
    • ThinkPad T420 4178A49 Notebook
    • Lithium Ion Battery
    • AC Adapter
    • ThinkPad T420 4178A49 Notebook
    • Lithium Ion Battery
    • AC Adapter
  • Security Features:
    • Power-on Password
    • Hard Disk Password
    • Supervisor Password
    • Security Keyhole
    • Trusted Platform Module, TCG 1.2-compliant

Processor & Chipset

  • Cache: 3 MB
  • Processor Core: Dual-core (2 Core)
  • 64-bit Processing: Yes
  • Processor Manufacturer: Intel
  • Chipset Manufacturer: Intel
  • Chipset Model: QM67 Express
  • Processor Model: i5-2520M
  • Processor Speed: 2.50 GHz
  • Processor Type: Core i5
  • Hyper-Threading: Yes
  • Direct Media Interface: 5 GT/s


  • Number of Total Memory Slots: 2
  • Memory Standard: DDR3-1333/PC3-10600
  • Memory Technology: DDR3 SDRAM
  • Maximum Memory: 8 GB
  • Standard Memory: 4 GB
  • Memory Card Reader: Yes
  • Memory Card Supported:
    • Secure Digital (SD)
    • MultiMediaCard (MMC)
    • Secure Digital High Capacity (SDHC)
    • Secure Digital Extended Capacity (SDXC)

Network & Communication

  • Wireless LAN: Yes
  • Wireless LAN Standard: IEEE 802.11b/g/n
  • Ethernet Technology: Gigabit Ethernet
  • Wireless LAN Manufacturer: Intel
  • Wireless LAN Model: Centrino Wireless-N 1000

Input Devices

  • Pointing Device Type:
    • TouchPad
    • Trackpoint
  • TouchPad Features: Multi-touch Gesture
  • Keyboard: Yes

Display & Graphics

  • Display Screen Type: Active Matrix TFT Color LCD
  • Backlight Technology: LED
  • Screen Size: 14"
  • Aspect Ratio: 16:9


  • Optical Drive Type: DVD-Writer
  • Optical Media Supported: DVD±R/±RW
  • Solid State Drive Capacity: 160 GB
  • Solid State Drive Interface: Serial ATA/300

Built-in Devices

  • Webcam: Yes
  • Microphone: Yes
  • Speakers: Yes

Power Description

  • Input Voltage:
    • 110 V AC
    • 220 V AC

I/O Expansions

  • Expansion Bay Type: Ultrabay Enhanced
  • Expansion Slot Type: ExpressCard/34


  • Operating System Architecture: 64-bit
  • Operating System: Windows 7 Professional

Battery Information

  • Battery Chemistry: Lithium Ion (Li-Ion)


  • Limited Warranty: 3 Year
Brand Lenovo
Model ThinkPad T420