Optimised storage solution for surveillance tasks main advantages the only hard drive optimised for surveillance tasks with a storage capacity of 2 tb designed for high volume usage as is common in video surveillance storage systems suitable for continuous use 1 million hours mtbf high performance 7200 rpm base platform 64 mb ddr2 dram and surveillance optimised write caching 1 tb per disk offers better surveillance solutions for lower cost per gb for hd resolutions as well