LG N2R1DD1. Total storage capacity: 1000 GB, Hard drive capacity: 500 GB, Hard drive rotational speed: 7200 RPM. Memory type: DDR2 SDRAM, Internal memory: 1024 MB. Processor clock speed: 800 MHz. Compliance industry standards: IEEE802.3, Data link protocols: DLNA, Cabling technology: 1000/100/10 Base-T. Bundled software: Power2Go v.6, PowerDVD v.8, MVP Album, PhotoDVD 4.0 SE, Operating system installed: Linux Kernel 2.6