Dell PERC 10 H840 12Gb 8GB SAS PCIe RAID Controller

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Spec Sheet 4

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).