| Type | Enterprise SSD |
| Form Factor | 2.5-inch U.2 |
| Capacity | 15.3 TB |
| Endurance Class | Value Endurance |
| Series | Western Digital Ultrastar DC SN840 |
| Power Consumption (Read) | Approximately 13.5 W |
| Power Consumption (Write) | Approximately 18 W |
| Power Consumption (Idle) | Less than 5 W |
| MTBF | 2.5 million hours |
| Drive Write Per Day (DWPD) | 1 DWPD for 5 years |
Cisco 15.3TB WD SN840 NVMe U.2 SSD Extreme Performance

Key Benefits
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- Delivers extremely high capacity in a compact 2.5-inch U.2 form factor, maximizing rack space efficiency
- NVMe interface and SN840 series design deliver top-tier data throughput and latency performance
- TAA compliance makes it viable for regulated environments and public sector procurement
Product Overview
The Cisco 15.3TB WD SN840 NVMe SSD is a high-performance enterprise-grade storage solution designed to meet the demanding needs of data-intensive applications. With a substantial 15.3TB capacity housed in a 2.5-inch U.2 form factor, this drive supports NVMe interface standards to ensure ultra-fast data access, minimized latency, and improved IOPS performance.
Manufactured in Malaysia and TAA compliant, this solid-state drive is optimal for government and institutional procurements. The inclusion of Western Digital's SN840 series highlights a focus on extreme performance and endurance, making it suitable for mission-critical workloads, virtualization, and databases.
Ideal for data centers upgrading from legacy drives or expanding NVMe-based infrastructure, the unit’s reliability and design approach increase ROI by ensuring long-term durability and reducing total cost of ownership.
Specifications
Product Overview
Physical & Environmental
| Dimensions (H x W x D) | 15 mm x 69.85 mm x 100.45 mm |
| Weight | Approximately 170 grams |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Operating Humidity | 5% to 95% (non-condensing) |
| Shock | 1,000 G @ 0.5 ms (half sine) |
| Vibration (Operating) | 2.17 Grms, 7–800 Hz |
| Vibration (Non-operating) | 3.13 Grms, 5–800 Hz |
Cloud Management & Licensing
| Drive Management Software | Western Digital Device Manager |
| SMART Support | Yes |
| NVMe Management Interface | NVMe-MI 1.1 |
Interfaces
| Interface Type | PCIe 4.0 x4 NVMe 1.4 |
| Connector | U.2 (SFF-8639) |
| Read Throughput (Sequential) | Up to 6,200 MB/s |
| Write Throughput (Sequential) | Up to 3,800 MB/s |
| Random Read IOPS (4K) | Up to 1,000,000 IOPS |
| Random Write IOPS (4K) | Up to 250,000 IOPS |
| Latency (Read) | 80 µs typical |
| Latency (Write) | 20 µs typical |
Compliance & Origin
| Country of Origin | Malaysia |
| TAA Compliant | Yes |
| RoHS Compliant | Yes |
| UL Certified | Yes |
| FCC Class | Class B |
| Product Code (MPN) | HCI-NVME-W15300M6= |
Advanced Security Features
| Security Options | Secure Erase (Sanitize), Power Loss Protection |
| Data Protection | End-to-end data path protection |
| Encryption Support | AES 256-bit Encryption (SED model only, varies by SKU) |