The SR650 server supports up to six hot-swap single-rotor system fans that provide N+1 cooling redundancy: Models with one processor ship with five system fans. and models with two processors ship with six system fans. - ThinkSystem SR650 Fan Option Kit (for 2nd Gen processors only; 1st Gen processor options include a fan)
The Lenovo ThinkSystem FAN Option Kit is ideal for desktop and business computers requiring additional cooling power.
