Enterprise-level performance This mainstream desktop PC has everything it takes for your enterprise to excel, starting with the power and speed of the 2nd generation Intel® Core™ processor family. Access it faster with Lenovo Enhanced Experience 2.0 for Windows® 7 with RapidDrive (in select models), which lets you boot up in as little as 23.43 seconds.Transfer data faster with SATA III (rated at 6GB per second, or twice as fast as SATA II) and optional USB 3.0 (rated at 625MB per second, or ten times as fast as USB 2.0). And maximize productivity with support of up to four independent displays in discrete graphics mode. Stability and manageability. Enjoy lifecycle stability with the Intel® Stable Image Platform Program (SIPP), aligning and stabilizing platform components, enhancing software stability and reducing the need for driver changes. The M81 is available in two form factors, Tower (25L) and Small (11L), and is configure-to-order, customizeable and scalable for multiple business scenarios. It comes with Intel Standard Manageability features to save time and reduce maintenance costs, and in the event it requires hands-on maintenance, the toolless chassis makes it easy. Security and reliability. Rest easy knowing these PCs include the features you need to keep your data safe, such as an embedded Trusted Platform Module (TPM) chip, Lenovo’s Hardware Password Manager, Rescue and Recovery®, and the option to disable individual USBs. They've also been tested in extreme environments and designed to create less thermal heating and to limit vibration, providing a longer life for your investment. They're also better for the environment, with improved energy efficiency, Lenovo Power Manager and certifications from GREENGUARD, ENERGY STAR 5.2 (select models) and EPEAT® Gold (select models).