Western Digital has released a 400 GB Caviar RE2 RAID hard drive, aimed at enterprise applications, with a technology called Rotary Acceleration Feed Forward which optimizes performance in vibration-prone systems. The HD runs at 7,200 rpm, integrates 16 MB of cache and has average seek times of 8.7 ms (read) and 9.8 ms (write). WD offers a five-year warranty. Retail price is USD 289.