The Akyga AK-B1-550 is a Basic series power supply designed for standard ATX 2.31 computer builds. It delivers a total power of 550 W, with the +12V rail providing up to 288 W and a combined load of 280 W across the +3.3V and +5V rails, making it suitable for entry-level systems that do not require high-wattage components. To keep the internal temperature stable during operation, it uses a 120 mm fan with automatic speed adjustment and a chromed grill. Constructed from galvanized steel in a grey and silver finish, the unit measures 140 x 150 x 85 mm and weighs about 1 kg. It features a non-modular cable design including a 24-pin mainboard connector, one ATX12V P4 connector, and a single PCI-E 6+2 pin connector for basic graphics cards. You will also find three SATA connectors and three Molex ports to power additional drives or peripherals. For safety, the device incorporates passive PFC and several protection circuits including OVP, OCP, OPP, OTP, and SCP to guard against electrical faults.