The Vertiv Liebert 2POSTRMKIT1U is a rail kit designed to support all Vertiv 1U single phase UPS and UPS External Battery Cabinets. Currently this includes the PSI5-1000RM1201U, PSI5-1500RM1201U, VEBCLI-48VRT1U and VEBCLI-192VRT1U. The rail kit will be available as a costed accessory, and will not be included with the UPS or EBC in the packing box. The rail kit allows the user of the UPS or EBC to mount the equipment in a 2-post rack frame without exceeding a 1U height, so not impinging on any equipment above or below the UPS/EBC installed in the rack.