The Ultrastar® DC ZN540 ZNS NVME SSD is Western Digital’s zoned storage SSD for cloud and enterprise data center customers. It implements the ZNS command set as defined by the NVM Express (NVMe) organization. It is available with a vertically integrated dual-port controller for storage systems.
Zoned storage devices, such as ZNS SSDs are divided into zones, significantly simplifying the drive architecture and minimizing the need for complex data management. With a unified software stack, the host is able to intelligently place data in different zones which enables these key benefits:
Higher density and scale as virtually no over-provisioning is required
Significantly reduced DRAM requirements and fewer support logic functions are required
With minimal garbage collection required, the device controller can respond quicker
Because the data is not constantly re-written, the endurance is improved
Based on Western Digital 96-layer 3D NAND, the Western Digital PC SA530 3D NAND SATA SSD delivers high performance, high capacity, and superior endurance. In capacities of up to 1TB, the Western Digital PC SA530 achieves this while expending less power than our previous generations of SATA SSDs.
The Western Digital PC SA530 combines Western Digital’s state-of-the-art 96-layer 3D NAND technology with our proven SSD platform. It also incorporates nCache™ 2.0, a tiered caching technology designed to improve responsiveness for corporate and consumer workloads. nCache 2.0 uses a combination of both SLC (single level cell) and TLC flash blocks to improve endurance, increase efficiency, and boost performance. Writing data first to the SLC cache reduces write amplification on the TLC blocks.
With on-the-fly hardware-based encryption, the Western Digital PC SA530 (SED models only) provides complete end-to-end encryption to the storage, system and infrastructure. It supports password protection, AES-256-bit encryption, TCG-OPAL 2.01 standard and PSID.
The Western Digital PC SA530 is optimized for the demanding power management requirements of ultra-thin and small form factor products.
It features Device Sleep (DEVSLP), more frequent use of low-power modes, and faster transitions between various power modes. Also included for superior error recovery, DataGuard™ Client provides a robust on-the-fly error handling technology.
With a variety of design and integration options for manufacturers and systems builders, the Western Digital PC SA530 is available in either an SATA 2.5”/7mm cased or an M.2 2280 form factor, with capacities of 256 gigabytes2 (GB), 512GB, and 1 terabyte2 (TB).
With future-ready, scalable NVMe architecture, the Western Digital PC SN520 NVMe SSD offers a robust solution to fuel generations of innovative IoT applications. Scalable NVMe offers a significant performance increase over SATA SSDs while further optimizing low power consumption to the low level of 2.5mW.
This NVMe SSD enables greater design flexibility for IoT and embedded customers, who seek a cost effective, small form factor, reliable and rugged storage device with low capacity points from 128GB to 512GB.
The Western Digital PC SN520 NVMe SSD, supporting PCIe Gen3 x2, is designed for applications that have a limited number of PCIe lanes available for storage, however, require both high performance and low power. Partners that could benefit from NVMe technology include:
Equipped with a fully integrated solution which includes in-house controller, 64-layer 3D NAND, firmware, and testing, Western Digital provides longevity, supply and a robust and reliable design. Designed with Western Digital’s in-house tiered-caching NVMe architecture, the Western Digital PC SN520 NVMe SSD delivers high performance with sequential read and write speeds up to 1,700MB/s and 1,400MB/s respectively and high endurance up to 300 TBW, all of which are available in a variety of small form factors: M.2 2230, M.2 2242, M.2 2280.
Western Digital PC SN520 NVMe SSD, in variety of small, single-sided form factors such as M.2 2230, M.2 2242 and M.2 2280, enables customers to build ultra-thin, ultra-small boards and systems that address multiple IoT segments, without sacrificing performance and power consumption.
