Aluminum-polymer capacitors in a 2917 (or 7343 metric) package, with the following specifications: CAP ALUM POLY 270UF 20 2V SMD. These components have a capacitance of 270 microfarads, operate at 2 volts, and are made from aluminum-polymer materials. They feature an ESR of approximately 9 milliohms and offer a high level of reliability with a lifespan of 1000 hours at an operating temperature of 105 degrees Celsius.