EIA/TIA compliant 19 vented three rackspace rackshelf shall be Middle Atlantic Products model # U317. One-piece, 16-gauge rackshelf shall provide a 60 lb. weight capacity. U317 shall features slotted rear flange for cable management. Depth of 17-3/4 shall accommodate deeper components. U317 shall be GREENGUARD Indoor Air Quality Certified for Children and Schools. U317 shall be RoHS EU Directive 2002/95/EC compliant. U317 shall be manufactured by an ISO 9001 and ISO 14001 registered company.