Features: 1) Adopts high technology2) Precise sizes3) It is manufactured in accordance with ANSI / EIAR-310-D DIN41491 (PART1),IEC297-DIN41494 (PART7) and GB / T3047-92 standards. Also, it is producedcompatible with the 19" international standards, the metric system standardsand EISI standards4) Firm structure, can bear heavy weight and fill your requirements of these kindsof console5) There are ten-thousand direction leg wheels and supporting-legs for movementand steady installation6) It is very convenient, prompt, efficient and steady to combine the consoles7) We use high density mesh front and back doors to ventilate and dissipate heat 8) There are grouping covers on the hole of the wires; the front door and back doorcan be disassembled and assembled easily