Model | ThinkSystem S4520 |
Type | Enterprise Solid State Drive (SSD) |
Form Factor | 3.5" |
Capacity | 480 GB |
Interface | SATA 6 Gb/s |
Application | Entry-level server storage |
Usage Type | Read-intensive |
MTBF | 2,000,000 hours |
S.M.A.R.T. Support | Yes |
Power Consumption (Active) | 5.1 W (max) |
Power Consumption (Idle) | 1.5 W |
Drive Endurance | 0.58 DWPD |
Manufacturer Part Number (MPN) | 4XB7A77455 |
UPC | 889488593354 |
Lenovo ST50 V2 ThinkSystem S4520 480GB 3.5" SATA SSD





Key Benefits

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- Designed for Lenovo ST50 V2 servers, ensuring tailored compatibility with ThinkSystem infrastructure
- Enterprise-class reliability with 2 million-hour MTBF and S.M.A.R.T. diagnostics to reduce downtime risk
- High performance with 550 MBps read and 79,000 IOPS random read speeds for faster access to critical data
Product Overview
The Lenovo ST50 V2 ThinkSystem S4520 480GB SSD delivers efficient and high-performance data storage suited for entry-level server environments. With a 3.5-inch form factor and SATA 6 Gb/s interface, it ensures fast connectivity with data transfer rates of up to 6 Gbps. Optimized for reading-intensive applications, it features sequential read and write speeds of 550 MBps and 460 MBps, respectively.
Built for reliability, the S4520 supports an impressive 2,000,000 hours MTBF and includes S.M.A.R.T. capability for predictive health monitoring. High random I/O performance—up to 79,000 IOPS read and 30,000 IOPS write—suits server workloads like web hosting and database operations. With a 480GB capacity, this drive provides a balanced solution for scalable server deployments. Lenovo’s enterprise-grade SSD ensures consistent performance and long-term system stability.
Specifications
Product Overview
Physical & Environmental
Dimensions (L x W x H) | 146 mm x 101.85 mm x 25.91 mm |
Operating Temperature | 0°C to 70°C |
Storage Temperature | -55°C to 95°C |
Operating Humidity | 5% to 95% (non-condensing) |
Vibration (Operating) | 2.17 G RMS (5–800 Hz) |
Vibration (Non-operating) | 3.13 G RMS (5–800 Hz) |
Shock (Operating) | 1000 G @ 0.5 ms |
Shock (Non-Operating) | 1500 G @ 0.5 ms |
Weight | Approx. 182 g |
Advanced Security Features
End-to-End Data Protection | Yes |
Power Loss Data Protection | Yes |
AES 256-bit Encryption | Yes (SED model variant) |
Interfaces
Interface Type | SATA III (6 Gb/s) |
Data Transfer Rate | 6 Gbps |
Read Speed (Sequential) | 550 MBps |
Write Speed (Sequential) | 460 MBps |
Random Read IOPS (4K) | 79,000 |
Random Write IOPS (4K) | 30,000 |
Compliance & Origin
Country of Origin | |
TAA Compliant | |
RoHS Compliance | Yes |
Certifications | UL, CE, FCC, TUV, VCCI, KCC, BSMI |