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Western Digital Ultrastar DC SN840 15.36TB U.2 NVMe SSD WUS4BA1A1DSP3X3 (0TS2084)
Keywords
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Description
Western Digital Ultrastar DC SN840 15.36TB U.2 NVMe SSD, PN: WUS4BA1A1DSP3X3 (0TS2084), PCIe Gen3.1 dual-port interface, NVMe 1.3c protocol, 2.5-inch U.2 form factor, enterprise-grade 3D TLC NAND, ideal for high performance computing, database, cloud, AI and high availability storage array workloads.
Key Features
- Dual-port PCIe 3.1 NVMe 1.3c architecture provides redundant data path, greatly improving system availability for mission-critical enterprise storage environments.
- High sequential read up to 3470MB/s and random read 780K IOPS, stable low latency performance for OLTP, real-time analytics and virtualization workloads.
- Built-in enterprise functions including ISE instant secure erase, 128 namespaces, atomic write, protection information, MTBF rated 2.5 million hours for reliable long-term operation.
Configuration
- Model: Ultrastar DC SN840
- Capacity: 15.36TB
- Form Factor: 2.5" U.2
- Interface: PCIe 3.1 (NVMe 1.3c)
- Part Number: WUS4BA1A1DSP3X3 (0TS2084)
- NAND: 96-layer 3D TLC
- Security: ISE Instant Secure Erase
- Sequential Read: 3470 MB/s
- Sequential Write: 3190 MB/s
- Random Read: 780K IOPS
- Random Write: 149K IOPS
- MTBF: 2,500,000 hours
- Warranty: 5-year limited warranty
Compatibility
Compatible with mainstream x86 servers supporting U.2 NVMe PCIe Gen3, Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, Supermicro, storage enclosures with U.2 backplane, Linux, Windows Server, VMware ESXi.
Usage Scenarios
Database OLTP/OLAP, cloud computing, high performance HPC, AI & machine learning, virtualization, primary storage for enterprise storage arrays, low-latency cache node.
FAQ
Q: Is this SN840 dual port?
A: Yes, SN840 supports dual-port PCIe 3.1, support redundant path for HA storage.
Q: What is the difference between SN840 and SN850?
A: SN840 is PCIe Gen3 dual-port enterprise model; SN850 is PCIe Gen4 single port, higher bandwidth but without dual-port HA feature.
Q: Can it work on PCIe Gen4 U.2 backplane?
A: Yes, backward compatible, it will run at PCIe Gen3 speed.
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