Brand: Seagate | Category: Enterprise SSDs
SKU: ZP4000NM40021 | Part #: ZP4000NM40021 | MPN: ZP4000NM40021
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Seagate's Nytro 6551 enterprise SSD in the 3.84TB capacity (part number ZP4000NM40021) occupies a specific and well-defined role in modern data centre storage hierarchies: it is built for read-intensive caching and mixed-workload primary storage where sustained sequential throughput matters as much as random access latency. The 1,000,000 IOPS random read performance at queue depth 256 positions this drive squarely in the tier that supports transactional databases, real-time analytics platforms, and high-frequency trading systems where microseconds matter. Storage architects and infrastructure teams evaluating Seagate's enterprise-grade SSD portfolio will recognize the Nytro 6551 as the middle ground between capacity-optimized cold-tier drives and the extreme performance tier—a practical choice for workloads that cannot tolerate mechanical latency but do not require write endurance measured in petabytes annually.
The U.2 2.5-inch form factor with NVMe PCIe Gen4 x4 connectivity delivers up to 7000 MB/s sequential read throughput, a figure that directly enables efficient bulk data ingestion into memory-resident analytics engines and supports the kind of sustained bandwidth required during large-scale database recovery operations. Seagate engineered the Nytro 6551 with 3D TLC NAND and allocated 2100 TBW of endurance across its five-year warranty period, translating to 0.3 DWPD (drive writes per day). This endurance profile is honest engineering for a caching and mixed-workload tier rather than inflated marketing—the drive is designed to absorb steady read traffic and moderate write loads typical of production systems, not to handle unlimited random writes or to serve as a dedicated logging volume. The sequential write throughput reaches 3100 MB/s, sufficient for parallel checkpoint operations and bulk data staging without becoming a bottleneck in most enterprise workflows.
Power efficiency remains a practical concern in large-scale deployments, and the Nytro 6551 addresses it directly. Under active read operations the drive draws up to 14 watts, dropping to 5 watts at idle—metrics that matter when calculating total cost of ownership across hundreds or thousands of drives in a data centre environment. The drive includes capacitor-based power loss protection, ensuring that in-flight writes complete safely even during unexpected power events, and supports TCG Opal 2.0 self-encryption for regulatory compliance without sacrificing performance. End-to-end data path protection via T10 DIF/DIX prevents silent data corruption during transfers between the drive and the host system, a critical safeguard for financial services, healthcare, and research institutions where data integrity is non-negotiable. The 2,000,000-hour MTBF rating reflects Seagate's confidence in the component selection and thermal design, backed by an operating temperature range of 0°C to 70°C that accommodates both standard and edge-case data centre environments.
Data centre storage teams evaluating the ZP4000NM40021 should consider it as an alternative to previous-generation NVMe drives when refresh cycles align with budget availability. Its NVMe 1.4 standard compliance ensures compatibility with modern server platforms across Dell EMC, Hewlett Packard Enterprise, and Lenovo infrastructure, though validation with your specific hardware platform is always warranted. The 69.85 mm × 26.11 mm × 15.0 mm physical footprint fits standard U.2 hot-swap bays in current-generation 1U and 2U storage appliances, making the part number ZP4000NM40021 a straightforward drop-in replacement for worn-out drives or a capacity upgrade in existing systems. Whether deployed in hyperscale environments, private cloud platforms, or AI inference clusters, the Nytro 6551 operates within the cost-per-IOPS envelope that allows infrastructure teams to justify SSD adoption without waiting for flash prices to approach mechanical-drive parity.
Omnixon Global maintains stock and sourcing relationships for Seagate enterprise storage across the GCC region, with distribution centres in Dubai positioned to support data centre projects, AI lab buildouts, and enterprise storage expansions across UAE, Saudi Arabia, and broader Asia-Pacific markets. The ZP4000NM40021 is available for immediate availability confirmation and volume quotation; contact our technical sales team to discuss integration into your infrastructure roadmap, platform compatibility verification, or large-scale procurement planning.
| Brand | Seagate |
| Category | Enterprise SSDs |
| SKU | ZP4000NM40021 |
| Part Number | ZP4000NM40021 |
| Condition | New |
| Capacity | 3.84TB |
| Form Factor | U.2 |
| Interface | PCIe Gen5 |
| Speed | Read: 12,000 MB/s, Write: 10,000 MB/s |
| Product Line | Nytro 6551 |
| Manufacturer Part Number | ZP4000NM40021 |
| Form Factor | U.2 2.5-inch, 15mm |
| Capacity | 3.84 TB |
| Interface | NVMe PCIe Gen4 x4 |
| NVMe Standard | NVMe 1.4 |
| NAND Flash Type | 3D TLC NAND |
| Endurance (TBW) | 2100 TBW |
| Drive Writes Per Day (DWPD) | 0.3 DWPD (5-year basis) |
| Sequential Read Throughput | Up to 7000 MB/s |
| Sequential Write Throughput | Up to 3100 MB/s |
| Random Read (4K QD256) | Up to 1,000,000 IOPS |
| Random Write (4K QD256) | Up to 200,000 IOPS |
| Power Consumption (Active Read) | Up to 14 W |
| Power Consumption (Idle) | Up to 5 W |
| Power Loss Protection | Yes (capacitor-based) |
| Data Integrity | End-to-end data path protection (T10 DIF/DIX) |
| Operating Temperature | 0°C to 70°C |
| MTBF | 2,000,000 hours |
| Encryption | TCG Opal 2.0 (Self-Encrypting Drive option) |
| Dimensions | 69.85 mm x 26.11 mm x 15.0 mm |
At 3.84TB, the Seagate Nytro 6551 Enterprise SSD (Expected) - 3.84TB suits enterprise data-center storage tiers — all-flash arrays, hyperconverged storage pools (vSAN, Ceph), database backends, and high-throughput backup repositories. The PCIe 5.0 x4 interface is supported by major server platforms.
Key specifications for the Seagate Nytro 6551 Enterprise SSD (Expected) - 3.84TB: capacity 3.84TB; form factor U.2 (15mm); interface PCIe 5.0 x4; new condition; drive media type SSD; storage form factor U.2 (15mm); storage capacity 3.84TB; storage interface PCIe 5.0 x4. Manufacturer part number ZP4000NM40021. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
The Seagate Nytro 6551 Enterprise SSD (Expected) - 3.84TB uses a PCIe 5.0 x4 interface in a U.2 (15mm) form factor. It's compatible with server platforms that expose this interface — typical deployments include Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, and Supermicro SuperServer chassis. For specific vendor part-number compatibility, our team validates against the manufacturer support matrix.