This is a Corsair HX1500i 1500W ATX 3.1 80+ Platinum Fully Modular Power Supply. This is brand new and sealed.

Noteworthy specs include:

• 1500W Continuous Power
• 80+ Platinum Efficiency
• Fully Modular
• Low Noise + Zero RPM Fan Mode
• PCIe 5.1 Compatible
• ATX 3.1 Certfied

Included Cables:

• 1 Modular ATX 24-Pin
• 2 EPS / ATX 12V 8-Pin (4+4)
• 2 2x8-Pin to 12V-2x6
• 5 PCIe 8-Pin (6+2)
• 2 SATA (4 Straight SATA)
• 2 PATA (3 Straight PATA)
• 1 USB (Type-C) to 10-1-Pin

Additional information including full specifications can be found at the manufacturer's website at https://www.corsair.com/us/en/p/psu/cp-9020309-na/hx1500i-fully-modular-ultra-low-noise-platinum-atx-1500-watt-pc-power-supply-cp-9020309-na