0B40354 WD Ultrastar DC SS530 3.2TB SAS 2.5" Server SSD

High-Endurance 2.5in SAS Datacenter SSD for Write-Intensive Tiers with the 0B40354

The 0B40354 is a 3.2TB 2.5in SAS hot-swap internal datacenter SSD designed to stabilize latency and sustain heavy write cycles in enterprise servers and SAS storage arrays. As a cache tier device, the 0B40354 targets mixed read/write acceleration where predictable response under queue pressure is critical, including OLTP and transaction logging workloads that can quickly exhaust general-purpose media.

Built on TLC NAND with an endurance profile rated for 10 DWPD over 5 years, the 0B40354 focuses on sustained write consistency rather than short-burst benchmarking. The SAS interface aligns with dual-path, high-availability backplanes and standard hot-swap service models, while power-loss protection helps preserve in-flight data during unexpected power events. For performance planning, the 0B40354 supports up to 440K 4K read IOPS and 320K 4K write IOPS, enabling dense cache or log tiers without overprovisioning drive count.

Why Choose the 0B40354?

The 0B40354 delivers a practical density-to-endurance ratio for cache and write-intensive tiers in 24x7 deployments, reducing maintenance windows and limiting wear-driven refresh cycles. With self-encrypting drive capabilities and enterprise SAS integration, the 0B40354 fits environments that require secure decommissioning, consistent serviceability, and scalable expansion across multi-drive shelves.

WD engineers its datacenter SSD portfolio around predictable behavior, validated firmware, and reliability targets suited to modern rack-scale operations. The design emphasis on power-loss protection, long MTBF expectations, and secure lifecycle management supports standard data center governance and compliance frameworks.

Key Applications:

• SAS array read/write cache tiers
• Write-intensive OLTP databases
• Transaction logging and journal volumes
• Virtualization metadata and datastore acceleration
• 24x7 enterprise server storage

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout timelines, plus an extended warranty option up to 6 years to align coverage with your operational lifecycle planning for the 0B40354.