Display Size 0.01 Processor 3.1 GHz Intel Core i5 RAM 4 GB ddr3_sdram Hard Drive 500 gb Graphics Coprocessor Intel Integrated Graphics Card Description integrated Graphics Memory Size 2 MB Number of USB 2.0 Ports 8 Brand Name Lenovo Series ThinkCentre Item model number Lenovo M91P SFF Hardware Platform PC Operating System Windows 10 PRO ( Activated) Item Weight 5.44 Kg Item dimensions L x W x H 45.7 x 7.6 x 35.6 cm Color Black Processor Brand Intel Processor Count 4 Memory Type DDR3 SDRAM Hard Disk Interface Serial ATA Hard Drive Rotational Speed 5400 RPM Optical Storage Device Type DVD-ROM