Performance & reliability: Tested for maximum compatibility & stability * Memory: speed 4X faster than competing models using SDRAM w/ up to 2 tb HardDrive storage (HDD not included) * Media: Support all popular optical media formats including Blu-ray disc * support 1 to 5 SATA DVD, CD, or Blu Ray Writers (same format, not mixed) * Up to 24x DVD Write Speed, 8x BD-R Single Layer Write Speed, 48x CD-R write