SAMSUNG 19V 2.1A ZM/SAM1921C Samsung's new Mitsu laptop power supply is equipped with a ferrite filter and excellent protection against overvoltage, overheat, overload and overcharge. Samsung laptop chargers are designed for the most vulnerable users who value their work stress-free and convenient. The quality of the product is confirmed by the received certificates: CE, ROHS, FCC and strict quality control aimed at eliminating possible defects. Quality first: Temperature resistance - The effects of high and low temperatures on the resistance of protective systems and the electrical parameters of the power supply are investigated. Electrical test - testing the correctness of the electrical connections between the various components of the power supply. Immunity to faults and overvoltage test - The response of the protective systems of the power supply is investigated due to a short circuit and a sudden change in voltage, simulated by applying a high voltage pulse at the input of the power supply. Final test - Tests the output voltage level of the power supply by operating it under a continuous hourly load. The computer must include a power cord, warranty card, and user manual. How to choose the right power supply? DC power parameters (direct current wewnętrzal srove) are usually listed under the laptop on a STICKER behind the inscription "INPUT" "V voltage" (volts) must match the value specified on the laptop "A current" (amperes) must be equal to or greater than specified in a laptop, this parameter means the maximum current that the power supply is allowed to supply, and the size of the load is determined by the laptop "A current" (ampere), i.e. description; we can also determine based on the power supply manufacturer's database