D2-400L-M10SA is a 4U storage rackmount chassis. It is elegant and includes intelligent functional design. The redesigned D2-400L-M10SA features 10 hot-swap drive trays with SATA II interface to provide high density and high-availability storage system. It can support 7 add-on cards for system expansions and upgrades. It also has excellent thermal design with 3x120mm 1x80mm [1x80mm] hot-swappable fans to ensure optimal system performance. D2-400L-M10SA is the cost-effective and all around storage rackmount chassis.