Description
The Western Digital Ultrastar DC SN655 NVMe SSD (0TS2509) delivers enterprise-grade performance, capacity, and reliability in a 2.5" U.3 form factor. Engineered for read-intensive workloads in cloud and data center environments, this 30.72TB solid-state drive leverages PCIe Gen 4.0, NVMe 1.4b, and BiCS5 3D NAND to support high-throughput and low-latency applications like AI, ML, and big data analytics. Featuring 1 DWPD endurance, 5.96 GB/s read speeds, and up to 1.05M IOPS, the SN655 enables scalable, power-efficient storage infrastructure with full dual-port support, power loss protection, and 5-year warranty.
| Specification | Details |
|---|---|
| Brand | Western Digital |
| Series | Ultrastar DC SN655 |
| Model | WUS5EC0B1ESP7Y3 |
| Part Number | 0TS2509 |
| Interface | PCI Express NVMe 4.0 |
| Form Factor | U.3 (15 mm), 2.5" |
| Capacity | 30.72 TB |
| NAND Flash Type | BiCS5 TLC 3D NAND |
| Sequential Read | Up to 5.96 GB/s |
| Sequential Write | Up to 3.32 GB/s |
| Random Read (4KB) | Up to 1,052,000 IOPS |
| Random Write (4KB) | Up to 66,000 IOPS |
| Endurance Rating | 1 DWPD |
| Drive Type | Read-Intensive |
| MTBF | 2.5 million hours (projected) |
| Power Loss Protection | Yes |
| Warranty | 5-Year Limited Warranty |
| Supported Platforms | Linux, Windows, Windows Server |
| Device Support | Server, Data Center |
| Dimensions (HxWxL) | 0.6" x 2.8" x 4" |
| Weight | 5.20 oz (approx.) |
| Shipping Weight | 1 lb |
| Product Condition | New and Factory Fresh |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
