What is the performance of this SSD?

Sequential read up to 6800 MB/s (128KB), write up to 5600 MB/s (128KB); random read 1,000,000 IOPS (4KB), write 400,000 IOPS (4KB). Latency: 80µs read, 15µs write typical. These specs support mixed workloads in datacenters with PCIe 4.0 x4 NVMe.

What is the endurance rating?

2.9 DWPD over 5 years, totaling 4300 TB written. Optimized for mixed read-write with Micron 3D TLC NAND, ensuring reliability under intensive use like databases and virtualization.

Does it support encryption?

Yes, TCG Opal SED encryption with NIST-approved algorithms, secure execution environment, and asymmetric roots of trust. Ideal for compliance in secure datacenter environments.

What interface and form factor?

2.5-inch U.3 hot-swap with PCIe 4.0 x4 NVMe 1.4b (132 namespaces). Compatible with Lenovo ThinkSystem servers for easy installation and high bandwidth.

What are the operating conditions?

Operates 0-70°C, stores -40-85°C, 5-95% RH non-condensing. Includes adaptive thermal monitoring for sustained performance in enterprise racks.

What reliability features are included?

Advanced ECC, end-to-end protection, power-loss protection, S.M.A.R.T., MTBF 2,000,000 hours, UBER <1 in 10^17. Minimizes data errors and downtime in critical applications.

4XB7A79639 - Lenovo 4XB7A79639 800GB PCIe 4.0 x4 NVMe U.3 Mixed Use SSD

Name: Lenovo 4XB7A79639 800GB PCIe 4.0 x4 NVMe U.3 Mixed Use SSD
Brand: Lenovo
SKU: 4XB7A79639

4XB7A79639 - Lenovo 4XB7A79639 800GB PCIe 4.0 x4 NVMe U.3 Mixed Use SSD | US IT Hardware

Product overview

The Lenovo ThinkSystem 2.5" U.3 7450 MAX 800GB Mixed Use NVMe PCIe 4.0 x4 Hot-Swap SSD (SKU 4XB7A79639) delivers high-performance storage for datacenter servers. Built with Micron 3D TLC NAND flash, it achieves sequential reads up to 6800 MB/s and writes up to 5600 MB/s (128KB blocks), random reads up to 1,000,000 IOPS and writes up to 400,000 IOPS (4KB blocks), with read latency of 80µs and write latency of 15µs typical. Endurance is rated at 2.9 DWPD over 5 years, totaling 4300 TB written, optimized for mixed read-write workloads. Interface is PCIe 4.0 x4 NVMe 1.4b U.3, supporting 132 namespaces. Reliability features include Advanced ECC, end-to-end data protection, power-loss protection, TCG Opal SED encryption, S.M.A.R.T., and adaptive thermal monitoring. Operates at 0-70°C, stores at -40-85°C. Ideal for virtualization, databases, and analytics in Lenovo ThinkSystem servers.

6800 MB/s seq read, 1M IOPS random read
2.9 DWPD endurance, 4300 TB written over 5 years
PCIe 4.0 x4 NVMe U.3 hot-swap, 80/15µs latency
TCG Opal SED encryption, power-loss protection
Micron 3D TLC NAND, NVMe 1.4b 132 namespaces
0-70°C operation, MTBF 2M hours

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Security Standards
Manufacturer part #	4XB7A79639
Brand	Lenovo
Condition	New
Model	7450 MAX
Monitoring	S.M.A.R.T. support; Adaptive Thermal Monitoring
Technology	Micron 3D TLC NAND Flash
Product Line	ThinkSystem 7450 MAX
Product Type	Mixed Use NVMe SSD
Data Protection	Advanced ECC Engine; End-to-End Data Protection; Power-Loss Protection
Security Features	Secure Execution Environment; Asymmetric Roots of Trust; Strong Asymmetric Key Support; SED encryption

Compatible systems

Compatible with Lenovo ThinkEdge SE455 V3 and other ThinkSystem servers supporting U.3 NVMe PCIe 4.0

Lenovo ThinkEdge
Model: SE455 V3
Form factor: Edge Server
Generation: V3
Validated compatibility per Lenovo ServerProven

Best for

Virtualization
Supports high IOPS (1M read/400K write) and low latency (80µs read/15µs write) for dense VM environments with mixed read-write patterns.
Databases
2.9 DWPD endurance and 6800 MB/s sequential reads handle transactional workloads efficiently in enterprise databases.
Analytics
PCIe 4.0 x4 speeds and Micron 3D TLC NAND optimize for data-intensive analytics with reliable power-loss protection.
Caching
High random performance and TCG Opal encryption secure fast-access caching layers in high-availability clusters.

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NVMe Enterprise & Data Center SSDs 800GB Enterprise SSDs 2.5-inch Enterprise SSDs Enterprise SSDs

Form Factor	2.5-inch U.3 Hot-Swap

NVMe Version	1.4b with 132 namespaces supported
Interface Type	PCIe 4.0 x4 NVMe U.3
Drive Interface Standard	PCI Express NVMe 4.0 x4

Drive Performance

Endurance	Optimized for mixed read-write workloads
Read Latency	80µs typical
Write Latency	15µs typical
Random Read IOPS	Up to 1,000,000 4KB
Random Write IOPS	Up to 400,000 4KB
Sequential Read Speed	Up to 6800 MB/s 128KB
Sequential Write Speed	Up to 5600 MB/s 128KB

Operating Humidity	5 - 95% relative humidity non-condensing
Storage Temperature	-40 - 85 °C
Operating Temperature	0 - 70 °C

Lenovo 4XB7A79639 800GB PCIe 4.0 x4 NVMe U.3 Mixed Use SSD

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Physical Characteristics

Interface/Ports

Drive Performance

Media & Performance

Environmental Condition

Lenovo 4XB7A79639 800GB PCIe 4.0 x4 NVMe U.3 Mixed Use SSD

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Shop these collections

Physical Characteristics

Interface/Ports

Drive Performance

Media & Performance

Environmental Condition