This is a ARB Brand Product. ARB Laptop Adapter For Samsung Series 9 NP900X3A 19V 2.1A Connector Pin Size 5.5x3.0. This ARB replacement adapter is designed to provide reliable power and charge to your laptop. Made from highest quality parts each ARB replacement adapter conforms to specifications similar to original in its quality. Each adapter also passes necessary authentication certifications like CE, ROHS etc. Before leaving the factory, so you can be rest assured for its quality, durability and performance. Please note that all images are indicative, actual product label may vary. Before place order the adapter please assure that you have select right adapter for your laptop. Please check the adapter's voltage and current compliance with the requirement of laptop. Adapter output current ? laptop rated current, adapter output voltage and notebook voltage deviation.