SilverStone FP33S Aluminum 3.5-Inch Drive Bay/Expansion Slot with Independent Fan Controllers (Silver). It's $25 at newegg!
Amazon.com: SilverStone FP33S Aluminum 3.5-Inch Drive Bay/Expansion Slot with Independent Fan Controllers (Silver): Electronics
- With more SilverStone adjustable fans now more popular than ever among enthusiasts, the release of FP33 should provide even greater user experience. Designed to fit into a 3.5¿ drive bay or in the expansion slot, the FP33 has three independent fan controllers to help adjust fan speeds at any combination desired in a system. As with all SilverStone products, the finish on the front panel and the knobs are of usual high class treatment, making it a top choice for anyone looking to gain more control of their system fans.
SilverStone 3.5-Inch Drive Bay/Expansion Slot with Independent Fan Controllers $8.93 
