Last year Western Digital overhauled their WD Black NVMe SSD with an upgrade to 3D NAND and a new in-house SSD controller, transforming the product line from one of the slowest NVMe drives to one of the top high-end competitors. Now the third generation WD Black SSD is here, with the model number SN750 to avoid confusion with its predecessors. (Internally, last years model was known as the SN700, and the OEM version was the SN720.) The new WD Black SN750 is an incremental update over last years model, keeping the same basic controller and 64L 3D NAND combination but refining the firmware and adding a 2TB option. Western Digital is also shifting their marketing efforts more toward gamers with the addition of SKUs featuring a large heatsink.