Carrot's compatible laser toner cartridges and supplies for Samsung SF-650 are designed to offer the best print performance, dependability and consistent yields that meet or surpass Samsung OEM (Original Equipment Manufacturer) specifications for the Samsung SF-650 and offer high-quality output. These compatible laser cartridges are brand new and are a smart alternative to high-cost OEM Samsung laser toner and supplies, offering substantial savings over the brand-name toner cartridges and supplies. Using compatible replacement toner cartridges and supplies for your Samsung SF-650 will not void your printer warranty. Carrot Ink guarantees 100% satisfaction on quality SF-650 laser toner and printing supplies.