ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR Lenovo System x3650 M3, 2.66 GHz, X5650, 4 GB, DDR3-SDRAM, 0 GB, Rack (2U) Lenovo System x3650 M3. Processor family: Intel® Xeon® 5000 Sequence, Processor frequency: 2.66 GHz, Processor model: X5650. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Memory layout (slots x size): 1 x 4 GB. Total storage capacity: 0 GB, HDD size: 2.5". Ethernet LAN. Power supply: 675 W. Chassis type: Rack (2U)