The LINIER 3170 Series from Kendall Howard features an open design to increase air flow and promote maximum ventilation to your components. Two sets of cage nut style rails are fully adjustable in one inch increments to accommodate any size equipment. Multiple cable entry points and four large knockouts offer convenient cable access and organization. These server racks come equipped with pre-installed casters for extra mobility. Available in 22, 27, 37 and 42 Unit sizes. These cabinets are made in the USA and featuring a five year manufacturer warranty for added reassurance.