ABT launched in 2008, and in that same year, six years ago, OWC announced the first Quad Interface Blu-ray external drive on the market for Mac and PC offering FireWire, USB 2.0, and eSATA. The flagship OWC Mercury Pro drive featured a 4X Blu-ray disc write speed that allowed you to burn up to 50GB per Blu-ray disk, and it was priced starting at $499.99

Link