APC Smart-UPS On-Line,6000 Watts /6000 VA,Input 208V /Output 208V, Interface Port Contact Closure, RJ-45 10/100 Base-T, RJ-45 Serial, Smart-Slot, USB, Extended runtime model, Rack Height 4 U. Includes: CD with software, Documentation CD, Installation guide, Rack Mounting brackets, Rack mounting hardware, Rack Mounting support rails, Temperature Probe, USB cable, Warranty card.