The Rugged Series rackmount chassis are designed to withstand the toughest and compact environment and perform industrial applications that require spill proof with 22? in depth. The RG-4380 is high performance rackmount chassis with a spill proof key-locked bezel, shock absorbing drive cage, and designed with 3x 5.25? bay, 1x 3.5? external Bay, 7x 3.5? internal bay, and 1x 5.25? slim bay. The IPC Rugged series is the most versatile and tough rackmount chassis for critical application.