Dell PowerEdge Storage Controller Comparison
| Model | Interface Support | PCI Support | SAS Connectors | Cache Memory Size | Write Back Cache | RAID Levels | Max Drive Support | RAID Support |
| PowerEdge RAID Controller (PERC) Series 10 | ||||||||
| S140 Software RAID | 6Gb/s SATA | N/A | N/A | No Cache | No Cache | 0,1,5,10 | 8 | Software RAID - Windows Only |
| PERC H740P Adapter | 12Gb/s SAS 6Gb/s SATA | PCI-Express 3.0 | 2x4 Internal | 8GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 32 | Hardware RAID |
| PERC H840 Adapter | 12Gb/s SAS | PCI-Express 3.0 | 2x4 External | 8GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 255 | Hardware RAID |
| PowerEdge RAID Controller (PERC) Series 9 | ||||||||
| S130 Software RAID | 6Gb/s SATA | N/A | N/A | No Cache | No Cache | 0,1,5,10 | 8 | Software RAID - Windows Only |
| PERC H330 Adapter | 12Gb/s SAS 6Gb/s SATA | PCI-Express 3.0 | 2x4 Internal | No Cache | No Cache | 0,1,5,10,50 *See Help Me Choose for R5/R50 performance with no controller cache | 16 RAID, 32 Non-RAID | Hardware RAID |
| PERC H730 Adapter | 12Gb/s SAS 6Gb/s SATA | PCI-Express 3.0 | 2x4 Internal | 1GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 32 | Hardware RAID |
| PERC H730P Adapter | 12Gb/s SAS 6Gb/s SATA | PCI-Express 3.0 | 2x4 Internal | 2GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 32 | Hardware RAID |
| PERC H830 Adapter | 12Gb/s SAS | PCI-Express 3.0 | 2x4 External | 2GB NV | Flash Backed Cache | 0,1,5,6,10,50,60 | 255 | Hardware RAID |
