Introduction

Accelerate Access to Critical Data for Data-Intensive Workloads and Applications
Ultrastar NVMe series SSDs perform at the speed of today's business needs. Enabling faster intelligence & access to critical data, these SSDs meet the growing digital demands of your business applications.

Performance NVMe Ultrastar DC SN840 SSDs deliver extreme performance & ultra-low latency to the top tier of enterprise storage. With proven dual-port NVMe architecture, these drives are best suited for performance demanding platforms including HPC servers, mission-critical applications and workloads that require superior read/write performance and low latency.

Mainstream NVMe Ultrastar DC SN640 SSDs are optimized for consistent quality of service and low latency for mixed random read/write workloads commonly generated by top enterprise applications such as virtualization, OLTP, NoSQL, web servers, file servers and mail servers. Ultrastar DC SN640 enables a seamless transition from SATA SSDs, delivering high performance for deeper insights & faster results for today's data intensive applications.

Enterprise Solutions Made Better by NVMe
Everywhere data lives, from sensors to mobile devices to the cloud, we're driving the innovation necessary to stay ahead of new demands. Our breadth of expertise and level of integration gives us an unmatched ability to deliver carefully calibrated solutions for every type and use of data.

Application Performance
Up to 503K Mixed RR/RW IOPS (70% Read, 30% Write, 4KiB)

Dual-port Leadership
2nd generation Western Digital designed dual-port high availability NVMe architecture

Endurance and Security
1 DW/D & 3 DW/D endurance options with TCG encryption and FIPS 140-2 validation (forthcoming)

Features

NVMe version

1.3c

SSD form factor

2.5"

SSD capacity

1600 GB

Interface

PCI Express 3.1

Memory type

3D TLC

NVMe

Y

Hardware encryption

Y

Random read (4KB)

736000 IOPS

Random write (4KB)

224000 IOPS

Read latency

139 µs

Uncorrectable Bit Error Rate (UBER)

< 1 per 10^17 bits read

Mean time between failures (MTBF)

2500000 h

Power

Operating voltage

12 V

Power consumption (average)

18 W

Power consumption (idle)

6 W

Operational conditions

Operating temperature (T-T)

0 - 70 °C

Storage temperature (T-T)

-40 - 85 °C

Weight & dimensions

Width

69.8 mm

Depth

100.5 mm

Height

15 mm