ITEM NAME:Waterproof Brushed ESC 320A 3S with Fan 5V 3A BEC T Connector Description: One-piece design (built electrolytic capacitors), fully waterproof and dustproof, adapt to climate and environment..Forward sustained current: 30A, peak current: 320A. 1 piece Brushed ESC 320A 3S with fan. BEC output: 3A / 5V. People always bought together with. Size: 4.2x2.8x2.5CM/. Reverse sustained current: 45A, peak current: 200A.