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Dell PERC H840 12G SAS External RAID Card 645NJ w/ Low Profile and Full Height Bracket
| Brand | Dell |
| Model | PERC H840 |
| Part Number | 645NJ |
| Device Type | External RAID Controller - plug-in card |
| Form Factor | 8-lane, PCI Express 3.1 compliant |
| Bracket Profile | Low Profile / High Profile |
| Interface | 3Gb/s, 6Gb/s & 12Gb/s SAS SSD support SED drive support |
| Physical ports | Two mini-SAS HD external SFF8644 |
| NV Cache | 8GB battery-backed write cache |
| Raid Levels | RAID levels 0, 1, 5, and 6 RAID spans 10, 50, and 60 Non-RAID (JBOD mode) |
| Solution provided | Eight-port (2- x4 connectors) external SAS solution for performance-hungry external storage environments |
| Key features | OCE, RLM, 4K/ UNMAP/ S.M.A.R.T. support Global and dedicated hot-spare with Revertible Hot-Spare support |
| SAS controller | LSI SAS 3508 |
| RAID management | CTRL-R, Dell OpenManage Storage, PERC CLI Additional management: UEFI (HII), CEM |
| Compatibility | 14th / 15th Gen Dell Servers |
| Cables | None included |
| Item Condition | Used, open box |
| Qty | 1 |
| Notes | |
(4457)
The Dell EMC PowerEdge RAID Controller (PERC) H840 is an eight-port (2-x4 connectors) external 12Gb/s SAS solution for performance-hungry external storage environments supporting up to 192 SAS hard-disk drives or solid-state drives.
As storage demands expand and processing loads grow, it becomes increasingly more difficult for administrators to achieve maximum performance and scale from their applications. The newest line of Dell EMC PERC cards, built on the LSI 3508 dual-core ARM A15 RAID-On-Chip (ROC), offer unmatched I/O performance for database applications and streaming digital media environments.
The PERC H840, with eight external ports (2- x4 connectors), delivers two high performance ARM A15 processor cores and integrates a 72-bit, DDR4-2133 DRAM interface that drives 4GB non-volatile cache memory. This controller is ideal for configuring external storage enclosures that drives high-performance SAS hard drives and application-accelerating solid state drives. The PERC H840 exploits the potential of 12Gb/s SAS SSDs for unsurpassed performance and enterprise-class reliability.
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