The Keurig K-Classic Black Single Cup Brewing System Coffee Maker K40 is a sleek and efficient coffee maker that brews single-cup coffee in under 1 minute. It features a 48 oz water tank capacity, 6, 8, and 10 oz cup sizes, and a permanent filter for easy maintenance. With its electric power source and heat-up time of 60 seconds, this coffee maker is perfect for producing delicious coffee quickly. Additionally, the removable drip tray and 48 oz removable water reservoir add to its convenience and ease of use.