866430-001 HP 800-Watts BBU 400W 12V 1U Power Supply

The product description should read:

This high-capacity power supply provides reliable and efficient 800-watt power delivery for your computer system. With a capacity of 866430-001, it meets the demanding requirements of most desktop and laptop computers, ensuring stable and uninterrupted power delivery across multiple systems. The 12-volt input ensures compatibility with standard 12-volt applications, while the compact 1U form factor makes it an ideal choice for space-constrained environments.