SanDisk PC SN520 256 GB Solid State Drive - M.2 2230 Internal - PCI Express NVMe (PCI Express NVMe 3.0 x2) SDAPTUW-256G



Design Flexibility

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.

Robust Construction Suited for IoT

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:

  • Commercial: Interactive kiosks, ATMs and Point-of-Sales (POS), Multi-Functional Printers (MFP) and industries that require high-volume transaction processing
  • Edge Equipment and IoT Gateway: Such as network equipment, industrial machinery, medical equipment, or embedded PC that need the high capacities to capture the floor's and sensors' data and the high IOPS to support the system's data analytics
  • Media Content Delivery and Streaming: In-flight entertainment systems, train control and monitoring systems, data recorder and video surveillance that require high capacity and reliability

Versatile Options for IoT

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.

Other Information
Device Supported:
  • ATM Machine
  • POS Terminal
  • Printer
  • Video Surveillance System
Storage Capacity: 256 GB
Manufacturer Part Number: SDAPTUW-256G
Manufacturer Website Address:
Weight (Approximate): 0.12 oz
Drive Type: Internal
Form Factor: M.2 2230
Manufacturer: Western Digital Corporation
Product Name: PC SN520 NVMe SSD
Product Series: PC SN520
Brand Name: SanDisk
Height: 0.1"
Width: 0.9"
Depth: 1.2"
Wireless LAN: No
Maximum Read Transfer Rate: 1700 MB/s
Maximum Write Transfer Rate: 1300 MB/s
Operating Power Consumption: 75 mW
Drive Interface: PCI Express NVMe
Drive Interface Standard: PCI Express NVMe 3.0 x2
Endurance (TBW): 200 TB
Product Type: Solid State Drive

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