Western Digital part number WUSTR6440ASS200 identifies the WUSTR6440ASS200 - Western Digital Ultrastar SS530 400GB Triple-Level-Cell SAS 12Gb/s ISE 2.5-inch Solid State Drive, an enterprise-grade Solid State Drives unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include capacity of 400 GB, form factor of 2.5-inch, interface of SAS, data rate of 12 Gb/s. Typical workloads include VMware ESXi datastores, Veeam / Rubrik / Cohesity backup repositories, RDBMS data files (SQL Server, PostgreSQL, Oracle), and log-tier storage for Splunk and Elastic. Pro Disk Network maintains the WUSTR6440ASS200 in our enterprise inventory and verifies each unit against manufacturer datasheet specifications prior to listing. New stock ships factory-sealed where available; refurbished units are tested under load before dispatch and ship with a 90-day Pro Disk Network functional warranty. Same-day dispatch on in-stock orders placed before 3pm ET; free standard ground shipping on US orders over $150.
The WUSTR6440ASS200 is a Western Digital solid state drives component with capacity 400 GB, form factor 2.5-inch, interface SAS. Pro Disk Network sells the WUSTR6440ASS200 for $641.42 with same-day US shipping and a 30-day return guarantee.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the WUSTR6440ASS200 are shown on this page.
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Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: Will the WUSTR6440ASS200 fit my system?
The WUSTR6440ASS200 is a Western Digital solid state drives part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the WUSTR6440ASS200 ship?
WUSTR6440ASS200 orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
The WUSTR6440ASS200 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
VMware Datastore — ESXi 7/8 datastores hosting 30–80 VMs per drive. RAID 10 for write-intensive, RAID 5 for read-leaning VM mixes.
Citrix / Horizon VDI — Linked-clone master images and write-cache disks. Lower DWPD acceptable since VDI write patterns are bursty.
NoSQL & Real-Time Analytics — MongoDB, Cassandra, ClickHouse, Druid hot-tier nodes. NVMe variant strongly preferred over SAS/SATA for query latency.
Hypervisor Boot — ESXi, Hyper-V, Proxmox boot drives. Read-intensive (1 DWPD) is sufficient. Mirror two drives for redundancy.
What is the WUSTR6440ASS200?
The WUSTR6440ASS200 is a Western Digital enterprise solid-state drive with capacity 400 GB and form factor 2.5-inch, manufactured by Western Digital. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of WUSTR6440ASS200
Pros
Free 30-day return window covers DOA + fit issues
Cons
Not recommended for OLTP databases above 50 TPS
Mechanical drive — expect 5–10W idle power per unit
3.5" form factor only — confirm caddy fit before ordering
Frequently Asked Questions about WUSTR6440ASS200
Is the WUSTR6440ASS200 a genuine Western Digital part?
Yes. Pro Disk Network sources every WUSTR6440ASS200 as factory-original Western Digital inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Western Digital servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the WUSTR6440ASS200 fit my system?
The WUSTR6440ASS200 is a Western Digital solid state drives part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the WUSTR6440ASS200 ship?
WUSTR6440ASS200 orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
What is the warranty on the WUSTR6440ASS200?
New WUSTR6440ASS200 units carry the full Western Digital manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the WUSTR6440ASS200?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.