Thermaltake Smart 80 PLUS PSU, 500W

This is a decent deal for a 500W 80 PLUS certified power supply unit from Thermaltake. While the original price and discount are not specified, $19.99 is a competitive price point for a PSU of this wattage and efficiency rating. It's suitable for budget builds or as a replacement for a basic system, but may not be sufficient for high-end gaming rigs.