


The Dell PERC 10 H345 12Gb SAS RAID Controller FH offers dependable RAID functionality for external storage environments needing SAS and SATA drive compatibility. Built on PCI-e 3.0 architecture, it connects through a 2x8 external SAS interface to deliver high-speed, reliable data access.
Supporting RAID levels 0, 1, and 10, the H345 manages up to 63 drives without the need for onboard cache. This full-height controller provides a scalable, hardware-based storage solution for enterprise systems that require performance, flexibility, and streamlined RAID management.
Summary of RAID levels Following is a list of the RAID levels supported by the PERC 12 series of cards:
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| Models | Drive Types | PCI Support | SAS Connectors | Cache Memory | Write Back Cache | RAID Levels | Max Drive Support | RAID Support |
|---|---|---|---|---|---|---|---|---|
| H840 Adapter FH | 12 Gb/s SAS 6 Gb/s SATA |
PCIe 3.1 | 2x4 External | 8 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 255 | Hardware |
| H840 Adapter LP | ||||||||
| H745P MX Adapter | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | Modular Enclosure | 8 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | - | Hardware |
| H740P FH | 12 Gb/s SAS 6 Gb/s SATA |
PCIe 3.1 | 2x4 External | 8 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 32 | Hardware |
| H740P LP | ||||||||
| H740P Mini Mono | 12 Gb/s SAS 6 Gb/s SATA |
PCIe 3.1 | 2x4 External | 8 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 32 | Hardware |
| S150 Software RAID | 6 Gb/s SATA/NVMe | PCIe | N/A | No Cache | No Cache | 0,1,5,10 | 30* | Software RAID Windows and Linux |
| S140 Software RAID | 6 Gb/s SATA/NVMe | N/A | N/A | No Cache | No Cache | 0,1,5,10 | 16* | Software RAID Windows and Linux |
| 12 Gbps SAS Ext. HBA | 12 Gb/s SAS | PCIe 3.0 | 2x4 External | No Cache | No Cache | No RAID Pass-Thru Only | 255 | No RAID Pass-Thru Only |
| H745 Adapter | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | 2x8 Internal | 4 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 240 | Hardware |
| H745 Front | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | 2x8 Internal | 4 GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 240 | Hardware |
| H345 FH | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | 2x8 Internal | No Cache | No Cache | 0,1,10 | 63 | Hardware |
| H345 LP | ||||||||
| H345 Front | 12 Gb/s SAS 6 Gb/s SATA/SAS 3 Gb/s SATA |
PCIe 3 | 2x8 Internal | No Cache | No Cache | 0,1,10 | 63 | Hardware |
| *The S150 controller supports up to 8 SATA disks (HDD and SSD) depending on system backplane configuration, supports up to 30 NVMe PCIe SSDs. | ||||||||
| *The S140 controller supports up to 16 physical disks (SATA + NVMe) depending on system backplane configuration except the PowerEdge R840 and PowerEdge R940xa supports up to 30 (SATA + NVMe). | ||||||||

