Micron Delivers First 176-Layer QLC SSDs: Up to 4,500 Mbps Read


titleMicron delivers a 176-layer QLC SSD with up to 4,500Mbps read speed, the best SSDs, and that continues today with its latest announcement in the customer storage and data center markets. The company has launched volume shipments of 176-layer quad-level cell (QLC) NAND flash, which it says is an industry first for SSDs.

The 176-layer MLC (multilayer cell) was rolled out by Micron in late 2020, but the introduction of technology in the QLC field is expected to allow higher capacity SSDs that fetch lower prices. The new Micron 2400 PCIe 4.0 NVMe SSD is now available for client applications (i.e., cost-effective desktops and laptops) to showcase this advancement. Micron will even offer the 2400 SSD in a tiny 22x30mm M.2 form factor, which is the smallest available with a 2TB capacity. 22x42mm and 22x80mm form factors are also available.

Micron 2400 SSD

(Image credit: Micron)

Compared to Micron’s 96-layer QLC, its new 176-layer successor offers 33% higher I / O throughput and up to 24% reduction in read latency. In the case of the 2400 SSD, it will be available in capacities of 512 GB, 1 TB and 2 TB. As is generally the case, the larger capacity SKU offers the best performance, with sequential reads / writes. of 4,500 Mbps and 4,000 Mbps, respectively. Random reads / writes arrive at 650K and 700K IOPS respectively.

When it comes to endurance, Micron quotes up to 600 terabytes written (TBW) for the 2TB SKU, while the entry-level 512GB SKU is content with 150 TBW. If that wasn’t enough, Micron claims that idle power consumption has been reduced by 50% compared to its previous generation QLC SSDs.

“Micron’s 2400 SSD builds on our leadership in the 176-layer NAND industry to drive the transition to QLC-based storage for the customer market,” said Jeremy Werner, business vice president and general manager Micron storage. “By strengthening our market leadership, we anticipate that the new 2400 PCIe Gen4 SSD will significantly accelerate the adoption of QLC in customer devices, as it offers broader design options and more affordable capacity. “

We have to point out that the 176-layer QLC is primarily aimed at the economy segment (as a hard drive replacement), and Micron will also be launching consumer SSDs using this technology. And as you can see from the performance numbers, they are nowhere near the fastest consumer MLC SSDs today, which can exceed 7,000Mbps using the PCIe 4.0 interface. But the performance is definitely “good enough”, and the price / capacity ratio will certainly work in favor of these new QLC 176-layer SSDs.

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