PCIe Gen4 x4 Interface Extreme Fast Read/ Write Speeds of 7,400 / 7,000 MB/s Meets the Capacity Expansion Needs of PS5 Game Consoles Dedicated Heat Sink for Better Cooling Form Factor Dimensions: No Heatsink: 80.00 x 22.00 x 2.25, unit: mm With heat sink: 80.00 x 22.9 x 10.8, unit: mm