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HPE

HPE 804405-B21 | 12G SAS RAID | PCIe 3.0 x8 | 8x external lanes (2x SFF-8644) | 4GB FBWC | RAID 0/1/10/5/50/6/60

SKU:804405-B21

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Description

Performance Gen10 external-port SAS controller with 4GB flash-backed write cache for acceleration of read/write-intensive workloads. Delivers hardware RAID 0/1/10/5/50/6/60 and advanced caching, ideal for DAS shelves and high-availability deployments requiring strong data protection.

Features

- 4GB flash-backed cache accelerates transactional and mixed workloads
- Comprehensive RAID set including RAID 5/6 for strong data protection
- External 12G SAS for scalable, high-throughput DAS
- Write-back caching with power-loss protection (with battery)
- Enterprise-grade reliability and performance tuning options

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Does this controller support RAID 6?
A: Yes. It supports RAID 0/1/10/5/50/6/60.

Q: Is a battery required for the cache?
A: Yes. The 4GB FBWC requires a compatible Smart Storage Battery for full protection.

Q: What external connectors are provided?
A: Two Mini-SAS HD external connectors (SFF-8644), each carrying 4 lanes.

Q: Can it be used with JBOD shelves?
A: Yes. It is designed for external DAS/JBOD shelves and supports expanders.

Technical Specifications

- Interface: PCIe 3.0 x8, low-profile plug-in
- SAS/SATA speeds: SAS 12Gb/s per lane, SATA 6Gb/s
- Connectivity: 8 external lanes via 2x Mini-SAS HD (SFF-8644, 2x4)
- Cache: 4GB Flash-Backed Write Cache (requires Smart Storage Battery)
- RAID levels: 0/1/10/5/50/6/60
- Drive support: SAS and SATA HDD/SSD with external shelves/expanders
- Write-back and read-ahead caching for performance acceleration
- Generation: Smart Array Gen10, SR feature set

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