Bestec ATX-300-420W Bestec ATX-300-12Z Rev.BD ATX-250-12Z Power Supply 420WBestec ATX-300-420W Bestec ATX-300-12Z Rev.BD ATX-250-12Z Replace Power Supply Upgrade Connectors • One (1) 15-inch SATA connector• One (1) 14-inch ATX power connector (supports both 20-pin and 24-pin configurations)• One (1) 14-inch 12V ATX power connector• Two (2) 15-inch large power connectors• Two (2) 6-inch large power connectors• One (1) 6-inch Small power connectors20+4 ATX1 ATX12V SATA Power Peripheral FloppyInput Voltage:• 110V, 220V switchable power supplyCooling:• 80mm Power:• 420WPower up your machine!This replacement power supply has the power and features you need to give almost any desktop PC the power and boost it needs to work as hard as you do! With 420W of power, this replacement PSU is perfect for upgrades and custom builds.Replace a faulty power supply!This replacement power is compatible with a massive variety of different brands and models of desktop computers! Replace the PSU in your HP, Dell, Compaq, or other common system with our power supply upgrade!All the connections you need!With power connectors for many different peripherals and internal devices like Molex, SATA, and a 20+4 pin motherboard power plug that’s compatible with almost all motherboards, the power supply works with your computer’s parts right out of the box and powers them with ease!