IN STOCK - Ships in 5-7 days Storage capacities:  20TB   32TB   48TB   64TB With data protection. The RAID 10 writing mode is by far the best performing for recording HD and Super HD CCTV, as it is extremely fast. Unlike the RAID 5 & 6 modes usually used in the market in order to reduce production costs, the RAID 10 mode writes two disk cylinders at the same time and is 65% faster in writing because no complex writing algorithm is used. In order to prevent failures, we use Enterprise grade drives with an MTBF of 2.5M-hr (mean time between failures).