Dimensions: Toe Kick Grill Plastic Toe Kick Grill: W - 2 5/8” x L - 17 1/2” (6.7 x 44.5cm) Wood Toe Kick Grill: W - 3” x L - 17” (7.6 x 43.2cm)Fan Unit: See Cabinet Vent for Detailed Spec'sFan System: 1 50mm Magnetic Bearing Fan (Est. 50,000hr)Air Flow: 13 cfmNoise: Silent to ~22 dbaFan Hole Size: 3 1/8” or 3 1/4" (80mm) for Cabinet VentCutout for Toe Kick Grill: 2" x L 15 3/8" (5 x 39cm)Power Specifications Includes Power SupplyConnection: 2-Pin FastWire Power System (Ensure proper polarity, align Tip to +)Voltage: 5 to 7V DC for Normal Operation or 9-12V for More Aggressive Cooling Current : 40 milliamps at 12V DC