- 19 inch 1RU module frame for 24 individual modules; Keystone design - module frame front made of black anodized aluminum - plastic module support with dust protection covers (other colors available as accessory); detachable to the front - integrated cable support with optional strain relief - label window for enclosed identification labels - label sheet 210 x 297 mm see accessory - grounding bolt M6 x 10 with nut and lock washer