| Type | Internal Hard Drive |
| Form Factor | 3.5 inch |
| Capacity | 1.2 TB |
| Spindle Speed | 10000 RPM |
| Hot Swap Support | Yes |
| Drive Technology | HDD |
| Power Consumption (Idle) | 5.6 W |
| Power Consumption (Operational) | 8.6 W |
Lenovo 3.5" 1.2TB 10K RPM SAS 12Gb Hot-Swap HDD (4XB7A77004)

Key Benefits
AI-Powered Summaries from Online Customer Reviews
Eye-Insights™ are generated by proprietary AI that analyzes real online customer reviews to highlight top pros and key product features. While we aim for accuracy, insights are provided “as-is” and individual results may vary.
- Optimized for Lenovo ThinkSystem environments, ensuring compatibility and performance consistency
- Supports hot-swap functionality, minimizing downtime and improving serviceability
- Delivers high-speed 12Gb/s data throughput for accelerated application performance
Product Overview
The Lenovo 3.5" 1.2TB 10K RPM SAS 12Gb Hot-Swap HDD (part number 4XB7A77004) is engineered to support demanding enterprise storage infrastructures. Featuring a 10000 RPM spindle and SAS 12 Gb/s interface, this hard drive ensures fast data transfer rates and reduced latency. Its 1.2TB capacity handles high-volume workloads such as virtualization and backups. Hot-swap support allows replacement without downtime, while the 3.5-inch form factor ensures system compatibility. Though COO and TAA compliance are not specified, the drive delivers reliable storage performance for mission-critical applications.
Specifications
Product Overview
Physical & Environmental
| Width | 101.6 mm |
| Height | 26.1 mm |
| Depth | 147 mm |
| Weight | 0.72 kg |
| Operating Temperature | 5°C to 55°C |
| Non-Operating Temperature | -40°C to 70°C |
| Operating Shock | 40 G at 2 ms |
| Non-Operating Shock | 300 G at 2 ms |
| Operating Vibration | 0.5 G at 5–500 Hz |
| Non-Operating Vibration | 1.2 G at 5–500 Hz |
| Humidity (Operating) | 5% – 90% (non-condensing) |
| Humidity (Non-Operating) | 5% – 95% (non-condensing) |
| Noise Level (Idle) | 28 dBA |
| Noise Level (Seek) | 34 dBA |
Cloud Management & Licensing
| Cloud Management | |
| Licensing Requirements |
Interfaces
| Interface Type | SAS |
| Interface Speed | 12 Gb/s |
| Data Transfer Rate | 12 Gbps |
| Buffer Size | 128 MB |
| Block Size | 512n |
| Connector Type | SAS 29-pin |
Compliance & Origin
| Country of Origin | Inquire |
| TAA Compliant | Inquire |
| RoHS Compliant | Yes |
| CE Certified | Yes |
| WEEE Compliance | Yes |
| Halogen Free | Yes |
Advanced Security Features
| SED (Self-Encrypting Drive) | No |
| Encryption | No |
| FIPS Compliance | No |
| Drive Sanitation | No |