CORSAIR SF Series, SF450, 450 Watt, SFX, 80+ Gold Certified, Fully Modular Power Supply SFX Form Factor: High end performance in a small form factor 80 PLUS Gold certified: High efficiency operation for less excess heat and lower operating costs Fully Modular: Make your builds and upgrades easy, with clean, great-looking results 100% Japanese 105 electrolytic capacitors: Premium internal components ensure solid power delivery andlong term reliability Zero RPM Fan Mode: Virtually silent operation at low and medium loads Seven year warranty: Your guarantee of reliable operation that will last across several system builds