- 1.6mm steel body chassis. - Front access USB2.0 x1. - 120mm x1 cooling fan. - Removable air filter. - Spill-proof bezel with lock. - Shock absorbing drive cage. - 14 slot passive backplate. - Fan and temperature monitor. - Compact 17.8" depth. Ultra strong and compact for rugged environment and critical application, iStarUSA introduce the E-4140 rugged grade rackmount chassis. The E-4140 is designed to perform military operations or industrial applications that require spill proof and high impact strength enclosure. Exceptional designed shock absorbing drive cage, cooling ventilation system, and total depth of 17.8 is the most versatile and tough rackmount chassis on the market.