The black ThinkPad E540 20C6008SUS 15.6" Notebook Computer from Lenovo delivers both in terms of performance and mobility. The ThinkPad E540 provides a 6-cell lithium ion battery for up to 6.2 hours per charge (battery life may vary). The ThinkPad E540 features an ABS plastic lid for a portable yet durable design.
The 15.6" widescreen display is backlit with LED lamps, which brighten faster, use less power, and last longer than their CCFL counterparts. The screen has a 16:9 aspect ratio, which is also the standard for HDTVs. The HD 1366 x 768 native resolution is supported by integrated Intel HD Graphics 4600. The native resolution allows you to play back 720p HD content without upscaling or letterboxing.
The system is powered by a 4th generation Haswell dual-core 2.5 GHz Intel Core i5-4200M processor. It also has 4GB of 1600 MHz DDR3L RAM, a 500GB 7200 rpm hard drive, a SuperMulti DVD burner, a 4-in-1 media card reader, a fingerprint reader, 802.11b/g/n Wi-Fi, Bluetooth 4.0, an integrated webcam, and microphone. There are also built-in stereo speakers with Dolby Advanced Audio v2 technology.
Windows 7 Professional (64-bit) is the installed operating system. This version of Windows 7 Professional is preinstalled through the downgrade rights in Windows 8 Pro (64-bit).