Refurbished Lenovo ThinkCentre M81 Tower Desktop, Intel Dual Core G850 2900MHz 3M Cache processor, 4GB DDR3 RAM, 250GB HDD storage capacity, S-ATA interface, DVDRW optical drive. Fast delivery from stock. For professionals who need speed, stability, and flexibility in their activities. Lenovo equipped this ThinkCentre M81 system with the 2nd generation Intel® Core™ processors offering up to 20% performance increase. The integrated Intel® HD Graphics chip provides outstanding graphics. Lenovo RapidBoot technology allows this PC to start in less than 24 seconds. Security is another advantage as M81 offers Hardware Password Manager, Trusted Platform Module 1.2 technologies that keep the system and data safe. Additionally, it is an environmentally friendly unit, having achieved international standards Energy Star® 5.2, EPEAT® Gold, GREENGUARD®, Climate Savers®.