GreenlightUPS has a full line of the powerful modular APC Symmetras.
We have the classic SY Masterframe 16kva (SY16), Small PM 6kva rack mounts (SYPM6), Workhorse LX 8kva towers (SYLX8), and the awesome 3phase PX 80kva (SYPX80) systems
These systems offer great flexibility for server and equipment rooms.