Introducing the FatCage MB155SP-B, a 5-in-3 SATA 6Gbps hot swappable internal RAID backplane cage. This is the lite version of the MB45X series by removing the monitoring features, increasing the cooling performance, and reducing the overall cost, while keeping the same 3 year warranty and the core tray system for hot swapping and maintenance are kept for the best reliability in the market.