EIA/TIA compliant rackmount cable manager shall be Middle Atlantic Products model # HCM-1D. Horizontal cable manager shall use B cable rings. Cable rings shall be filled using a recommended 50% fill rate, accommodating up to 50 CAT5e cables. Horizontal cable manager shall be constructed with 16-gauge steel panel and finished in a durable flat black powder coat. Horizontal cable managers shall be GREENGUARD Indoor Air Quality Certified for Children and Schools. Horizontal cable managers shall be RoHS EU Directive 2002/95/EC compliant. Horizontal cable managers shall be manufactured by an ISO 9001 and ISO 14001 registered company. Horizontal cable managers shall be warrantied to be free from defects in material or workmanship under normal use and conditions for the lifetime of the product.