Athena AS0 SATA Controller for Blu Ray/DVD/CD Disc Copy Duplicator (1 to 5) Will 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 Fast DDR2 Buffer Memory-Memory speed 4X faster than competing models using SDRAM Revolutionary design with the SOTA Technology for the newest feature Drive firmware upgradeability via duplicator Performance & Reliability-Tested for maximum compatibility & stability Advanced Diagnosis Mode-Troubleshoots and sets adjustment for optimal performance Support up to 2TB Hard Drive (optional install)