This is the world’s first hybrid PCIe interface SSD that can operate in both PCIe 4.0 x4 and PCIe 5.0 x2 modes.
Samsung 990 Evo features impressive sequential read/write speeds of up to 5000/4200 MB/s and random read/write performance of up to 700K/800K IOPS.
This makes it competitive with other budget SSDs on the market, such as the Teamgroup MP44L and WD Black SN770, but with the advantage of an efficient 5nm controller and Samsung’s advanced 133-layer V6P TLC NAND flash.
What makes the 990 Evo special is its PCIe 5.0 x2 hybrid design, which is new for consumer SSDs.
This allows the device to meet current computing needs as well as predict future requirements.
On future platforms, using only two PCIe 5.0 lanes could provide the same performance as a PCIe 4.0 x4 interface, with potential improvements in power efficiency.
The 990 Evo is available in two capacity options: 1TB and 2TB, with a suggested retail price of $124.99 and $209.99, respectively.
Source: Ferra

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