This Great Wall E500 power supply is a reliable and efficient choice for your computer needs. With a maximum power output of 500W, it can support a variety of devices including ATX motherboards, PCI Express cards, and SATA hard drives. The power supply is semi-modular, has an ATX form factor and comes with connectors for 6 pin PCI Express, 8 pin 12V, 8 pin PCI Express, 24 pin, 6 pin Auxiliary, and SATA I. Please note that this power supply does not come with all necessary cables, but it is still a great option for those who need a reliable and efficient power supply. Whether you are building a desktop computer or upgrading an existing system, this Great Wall E500 power supply is a good choice.