Aspire AXC-603G-UW30 Celeron J1900 Quad-Core 2.0GHz Desktop Microsoft Windows 8.1 64-bit Intel Celeron J1900 Quad-Core 2.0GHz CPU Burst Frequency: 2.41 GHz L2 Cache: 2 MB 4GB DDR3 SDRAM (max 8GB) 500GB 7200RPM SATA hard drive DVD±RW drive Intel HD Graphics Integrated HD audio Gigabit ethernet SD card reader Front I/O Ports: Media card slot 3.5 mm headphone out 3.5 mm microphone in Two (2) USB 2.0 ports Rear I/O Ports: Two (2) USB 2.0 One (1) USB 3.0 One (1) RJ-45 One (1) HDMI Three (3) 3.5mm audio jacks Power Supply: Maximum Power Supply Wattage: 220W Input: 100-240V ~ 3.15A, 50-60Hz Output: 5V–14A Unit Dimensions: 10.4 x 3.9 x 3.9-inches (H x W x D) Weight: 11.3 lbs Package Includes: Aspire AXC-603G-UW30 Desktop Microsoft Windows 8.1 64-bit pre-installed USB Keyboard USB Mouse Power cord