UPS Management SmartSlot offer with serial shutdown support of up to two additional devices such as Servers and Network Storage Devices. Includes: RS-232 configuration cable, User Manual, Warranty card - Compatible with all Smart-UPS as well as the Symmetra Power Array, LX and RM UPS ranges. - Supports graceful shutdown for up to two additional devices such as servers and network storage devices connected serially. - Supports graceful shutdown of additional devices connected to the two simple signaling ports using PowerChute Business Edition. - The UPS Interface Expander 2 firmware can be upgraded using the USB mini B port - This software supports numerous operating systems and processors. For further information, please