The ThinkPad W540 20BGCT01WW 15.6" Mobile Workstation Notebook Computer from Lenovo is engineered for high-performance processing and graphics performance. This notebook computer is powered by an Intel quad-core 2.4 GHz Core i7-4800MQ Haswell processor and incorporates 16GB of 1600MHz DDR3L memory. With onboard Intel Turbo Boost 2.0 technology, the processor's speed can reach as high as 3.7 GHz. For long term data storage, this computer features a 256GB eDrive SSD. Solid State drives with eDrive compliance are optimized for data security. Bluetooth 4.0 is built-in for wireless communication with other Bluetooth-enabled devices like smartphones. This model also has 802.11a/b/g/n/ac Wi-Fi for high-speed Internet connectivity. The 15.6" widescreen display features LED backlighting for producing bright and vivid images. The display also incorporates anti-glare panel technology to minimize distracting screen reflections. The Full HD 1920 x 1080 native resolution is supported by the NVIDIA Optimus hybrid graphics system, which consists of the NVIDIA Quadro K2100M graphics card with 2GB of discrete memory and an integrated Intel HD Graphics 4600 chipset. A 720p webcam is also built-in into the computer for high-resolution video-conferencing. This notebook computer incorporates a SuperMulti DVD burner for reading and writing data on optical discs, and a 4-in-1 card reader for interfacing portable media cards. The 4-in-1 card reader is also compatible with high-speed UHS-II SD cards. With two USB 3.0 and two USB 2.0 ports, you have multiple options for connecting mass-storage devices. To help keep your important data safe, this notebook computer is equipped with a fingerprint reader. Intel vPro technology is also onboard. This ThinkPad W540 series notebook computer comes with Windows 7 Professional (64-bit) pre-installed and includes a license for installing Windows 8 Professional (64-bit).