Dell 4TB 400-BLFB 7.2K RPM NLSAS 12Gbps 512n 3.5" Hot-Plug Hard Drive
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- Brand Store: Dell
- Model: Dell 400-BLFB
- Availability: Out Of Stock
- Part No: 400-BLFB
Key features
Massive Enterprise Capacity: Packs 4TB of high-density storage to effortlessly scale data centers, legacy local backups, or large SQL server databases.
High-Speed 12Gbps NL-SAS Interface: Delivers significantly better data integrity and performance over standard SATA drives, optimizing mission-critical multi-drive RAID arrays.
Fast 7,200 RPM Spin Rate: Operates at 7.2K RPM combined with a massive 256MB cache to give infrastructure managers immediate, low-latency disk access.
Zero Downtime Replacement: Engineered for true hot-plug functionality, meaning drives can be swapped out mid-operation without taking the host server offline.
Native Legacy Support: Features a native 512n sector format, making it perfectly backwards-compatible with legacy applications, operating systems, and RAID controllers.
Plug-and-Play Tray Included: Ships pre-configured in a hot-swap 3.5" carrier engineered for rapid deployment inside Dell PowerEdge 14th & 15th Generation servers.
High-Speed 12Gbps NL-SAS Interface: Delivers significantly better data integrity and performance over standard SATA drives, optimizing mission-critical multi-drive RAID arrays.
Fast 7,200 RPM Spin Rate: Operates at 7.2K RPM combined with a massive 256MB cache to give infrastructure managers immediate, low-latency disk access.
Zero Downtime Replacement: Engineered for true hot-plug functionality, meaning drives can be swapped out mid-operation without taking the host server offline.
Native Legacy Support: Features a native 512n sector format, making it perfectly backwards-compatible with legacy applications, operating systems, and RAID controllers.
Plug-and-Play Tray Included: Ships pre-configured in a hot-swap 3.5" carrier engineered for rapid deployment inside Dell PowerEdge 14th & 15th Generation servers.


| Drive Specifications | Details |
| Capacity | 4 TB (4,000 GB) |
| Interface Type | Near-Line SAS (NL-SAS / SAS-3) |
| Interface Bus Speed | 12 Gbps (12G) |
| Spindle Speed | 7,200 RPM |
| Form Factor | 3.5-inch Large Form Factor (LFF) |
| Sector Format | 512n Native |
| Data Transfer Rate | Up to 1.2 GB/s (External) |
| Cache Buffer Size | 256 MB |
| Average Latency | 4.16 ms |
| Hot-Plug / Hot-Swap | Yes |
| Carrier Type | Attached 3.5-inch Hot-Plug Gen14/Gen15 Carrier (Tray) |
| Server Compatibility | |
| Dell PowerEdge Rack Servers | R240 / R250 R340 / R350 R440 / R450 R540 / R550 R640 / R650 / R650xs R740 / R740XD / R740XD2 R750 / R750xs / R750xa |
| Dell PowerEdge Tower Servers | T340 / T350 T440 / T550 T640 |
| Dell PowerVault Storage Arrays | ME4012 / ME5012 (Configured with compatible 3.5-inch LFF chassis) |
| General | |
| Manufacturer | Dell |
|---|---|
| Model | Dell 400-BLFB |
| Manufacturer Part No | 400-BLFB |
| Compatible Country | Middle East, Africa, Iran, Dubai |
| Country of Origin | USA |




















