Lenovo ThinkPad T420

Display

• Display size : 14 inches
• Maximum resolution : 1600 x 900
• Display type : Matte LCD with LED Backlight

Processor

• Processor class : Intel Core i5
• Processor model : 2520M
• Processor speed : 2500 MHz
• Number of Cores : 2
• Cache size : 3 MB

Graphics

• Graphics Type : Switchable
• Integrated Graphics Chipset : Intel
• Integrated Graphics Chipset Model Number : HD Core i5
• Discreet Graphics Chipset Model Number : NVS 4200M
• Graphics Memory : 1024 MB

Memory

• Installed memory : 4 GB
• Maximum memory : 8 GB
• Memory technology : DDR3
• Memory Speed : 1333 MHz

Storage

• Hard Drive Type : Hard Disk Drive
• Total HD Size : 500 GB
• Hard Drive Speed : 7200 RPM
• Number of hard drives included :1
• Other Storage : 

SD/MMC Card
SDHC Card

• Express Card : Express Card 34

Optical Drives

• Optical Drive Speed : 8 x
• Optical Drive Loading Type : Tray

Networking

• Ethernet Type : 10/100/1000 Mbps
• Wifi Type : 802.11 n/b/g

Interface Connections

• Number of USB 2 Ports : 4
• Number of Firewire Ports : 1
• Video Interfaces : DisplayPort, VGA
• Additional Interfaces : Bluetooth, eSATA

Dimensions

• Weight (min) : 5.2 pounds
• Weight (with accessories) : 6.1 lbs
• Width : 13.4 inches
• Depth : 10 inches
• Height : 1.4 inches

Software

• Operating system Microsoft Windows 7 Professional
• Included Software Corel: WinDVD SD, DVD MovieFactory (Lenovo Edition); Lenovo Utilities

Other Features

• Built-In Speakers : Stereo
• Docking Station Port : Yes
• Devices : Built-In Microphone, Built-In Webcam, Fingerprint Reader, Keyboard Light
• Input devices : Keyboard, Touchpad (multitouch)