Toshiba PX05SRB 3.84TB SAS 12Gb/s 2D NAND MLC 2.5-inch Enterprise SSD — PX05SRB384Y
The Toshiba PX05SRB384Y is the PX05SRB series 3.84TB enterprise SSD with SAS 12Gb/s interface, 2D NAND MLC flash, and 2.5-inch form factor. Designed for enterprise SAS storage arrays requiring high-capacity, high-endurance SSD storage, it delivers reliable mixed-use performance with dual-port SAS connectivity for high-availability storage deployments.
Key Features
- 3.84TB enterprise SAS SSD
- SAS 12Gb/s — dual-port SAS for high-availability storage arrays
- 2D NAND MLC — proven enterprise flash endurance
- 2.5-inch form factor — standard enterprise SSD bay compatible
- Mixed-use endurance for read/write balanced workloads
- Toshiba enterprise SSD — proven data center reliability
Product Specifications
- Part Number: PX05SRB384Y
- Manufacturer: Toshiba
- OEM Status: Retail
- Model: PX05SRB
- Capacity: 3.84TB
- Interface: SAS 12Gb/s
- Form Factor: 2.5-inch
- NAND Type: 2D NAND MLC
Storage Specifications
- Capacity: 3.84TB
- Interface: SAS 12Gb/s (dual-port)
- Form Factor: 2.5-inch (SFF)
- NAND: 2D NAND MLC
Performance Specifications
- Sequential Read: Up to 1,500 MB/s
- Sequential Write: Up to 1,200 MB/s
- MTBF: 2 million hours
- Endurance: Mixed-use
Use Cases
- Enterprise SAS storage array mixed-use SSD storage
- High-availability SAN deployments requiring dual-port SAS SSDs
- Database and transactional workloads in SAS storage arrays
- Replacement SSD for Toshiba PX05SRB series compatible storage systems
Compatibility
- SAS 12Gb/s HBAs, RAID controllers, and storage array backplanes
- Backward compatible with SAS 6Gb/s controllers (at reduced speed)
- Enterprise storage arrays supporting 2.5-inch SAS SSDs
Frequently Asked Questions
- What is the advantage of SAS over SATA for enterprise SSDs?
- SAS provides dual-port connectivity for high-availability (no single point of failure), higher sustained throughput, and longer cable lengths — making it preferred for enterprise storage arrays and SAN deployments over single-port SATA.
- What is 2D NAND MLC?
- 2D NAND MLC (Multi-Level Cell) stores 2 bits per cell in a planar (2D) architecture. MLC offers higher endurance than TLC or QLC, making it well-suited for mixed-use enterprise workloads with balanced read/write patterns.
The Toshiba PX05SRB384Y delivers 3.84TB of SAS 12Gb/s enterprise SSD storage with 2D NAND MLC flash and dual-port SAS connectivity — a high-endurance, high-availability SSD for enterprise SAS storage arrays and mixed-use data center workloads.


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