Micron launches 7500 series SSDs for data centers
Micron has announced the release of their 7500 series SSD, presenting a performance enhancement compared to the preceding 7450 series. This novel offering retains the PCIe 4.0 x4 interface, primarily targeting data center storage applications—including cloud and enterprise servers. Notably, it stands as the only mainstream data center SSD globally to feature over 200-layer NAND flash memory.
While the 7500 series SSD shares the same controller solution and platform as the 7450 series, it introduces new firmware and transitions to the 232-layer 3D TLC NAND flash memory chip. It boasts a service quality (QoS) latency of less than 1ms, further reducing delay times and augmenting both sequential and random read-write performance. The SSD achieves an impressive maximum sequential read speed of up to 7000 MB/s and a sequential write speed of up to 5900 MB/s. Additionally, it offers a maximum random read of 1100K IOPS and a maximum random write of 410K IOPS, slightly outperforming the 7450 series.
Micron’s 232-layer 3D TLC NAND flash memory chip adopts the CuA architecture, employing NAND string stacking technology. This innovative approach significantly reduces the chip size of NAND flash memory, contributing to cost reductions. It introduces the industry’s fastest I/O speeds, reaching 2.4 GB/s—a monumental 50% increase compared to the 176-layer NAND flash, while also elevating the write bandwidth by 100% and the read bandwidth by 75%. Moreover, it stands as the world’s first mass-produced six-plane TLC NAND flash, not only featuring more planes than its TLC NAND counterparts but also possessing independent reading capabilities for each plane. The fusion of high I/O speeds, reduced read-write latency, and the six-plane architecture ensures it delivers premier data transfer rates.
The Micron 7500 series adheres to the U.3/U.2 SSD specifications with a 15mm thickness—a prevalent dimension in recent server storage devices. It offers a capacity range from 800GB to 15.36TB, with a write endurance of 3 DWPD. Additionally, the 7500 series SSD complies with the TCG Opal 2.01 specification, securing the SPDM 1.2 certification, and incorporates AES-256-based hardware data encryption.
