CBK New 19V 4.74A 90W Laptop AC Adapter Power Cord Charger For Samsung Rf510 Rf710 R540 R580 R620 AD-9019 NP300V5A-A05 NP300V5A-A05US NP300V5A-A07US NP700Z7C-S03US NP770Z7E-S01UB Input: 100-240V, 50-60Hz Output: 19V 4.74A (central pin tip) Power Jack dimensions: Inner diameter - around 3.0mm Outer diameter - around 5.5mm Condition : Brand New Replacement for SAMSUNG Laptop AC Adapter power supply, 100% OEM Compatible! 2.5ft US power cord included. Fast Shipping from CA, US.