EIA-310-D – Defines the official 19-inch rack width, height unit (U) of 1. A 19-inch rack is a standardized frame or enclosure for mounting multiple electronic equipment modules. Based on the nVent SCHROFF Interscale platform and developed in accordance with IEC 60297-3-109. Stock levels update in real time and may change before you finish your purchase. The stock quantity shown reflects current availability, but it can. 19" Chassis provided for the integration of non-standardised elements (coils, power supplies, measurement enclosures, etc. Product that can withstand large loads.