Item specifics Brand Name: SXDOOL Application: Computer Case Type: Heatsink Heatsink Material: Copper & Aluminum Package: Yes Lines: same as the pic Guangzhou: Guangdong, China (Mainland) Product Description chen Benefits:Capable of generating electricity when one side is kept cool and heat is applied to the otherNo moving internal parts to damage when in transitMakes absolutely no noise and does not vibrateLong lifeSlim and compactExcellent qualityBrand new and unusedSpecifications:Type: TEC1-1270550WCouples: 127Imax (A): 5Vmax (V): 15 (usually working <=12v)QCmax (W):56Dimensions: about 40 x 40 x 4mmTmax C: 67Fully sealed for protection against moisture Packaging Details Unit Type: lot (5 pieces/lot) Package Weight: 1.0kg (2.20lb.) Package Size: 15cm x 15cm x 15cm (5.91in x 5.91in x 5.91in)