The 2-9USTAND enables tower installation of rack-mount UPS systems in a small footprint, freeing up valuable rack space and conserving floor space at the same time. Two included tower stands accommodate 2U to 9U widths to support single or multiple SmartOnline or SmartPro UPS systems, as well as compatible battery packs and accessories. By adding a second 2-9USTAND, you expand widths from 10U to 14U. This kit is ideal for networking and telecom applications where upright tower UPS placement is required.