Lenovo ThinkSystem FAN Option Kit

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)Lenovo ThinkSystem FAN Option Kit. Type: Cooler. Product colour: Black, Silver