DELL PERC H840 RAID Controller Card

DELL PERC H840 RAID Controller Card

The DELL PERC H840 RAID Controller Card is a high-performance storage solution designed for Dell PowerEdge servers. It supports up to 8 SAS/SATA drives with advanced RAID configurations, providing fast data transfer and reliable protection for critical enterprise workloads. With enhanced management tools and scalable performance, it ensures efficient and secure storage operations for demanding environments.

DELL PERC H840 RAID Controller – Specifications

DELL PERC H840 RAID Controller – Description

The DELL PowerEdge RAID Controller (PERC) H840 is an enterprise‑class external SAS RAID adapter designed to deliver high‑performance, reliable storage management for Dell PowerEdge servers in demanding storage environments. Built on Dell’s adapter version of the LSISAS 3508 RAID‑on‑Chip controller, the H840 provides robust hardware RAID capabilities and supports high‑speed 12 Gb/s SAS interfaces with backwards compatibility for SATA devices. It connects to the host via a PCI Express 3.1 x8 interface, ensuring ample bandwidth for large I/O workloads and external storage expansion.

This controller comes equipped with eight SAS/SATA lanes presented through two external Mini‑SAS HD (SFF‑8644) connectors, enabling connections to external storage enclosures or backplanes. The H840 supports key RAID levels — 0, 1, 5, 6, 10, 50, and 60 — providing flexibility to balance performance, redundancy, and capacity based on application requirements. Its non‑volatile cache (often 8 GB with battery backup) significantly accelerates read/write performance, especially for workloads with mixed or random I/O patterns, and protects cached data during power instability.

The controller supports advanced features such as Online Capacity Expansion (OCE) and Online RAID Level Migration (RLM), allowing administrators to grow storage and change RAID levels with minimal disruption. It also integrates with Dell’s OpenManage Storage Management suite and standard RAID utilities like StorCLI, enabling streamlined configuration and monitoring. With widespread Dell server support and external drive scalability (up to hundreds of drives with appropriate expanders), the PERC H840 is ideal for enterprise storage, virtualization, and data‑intensive applications requiring high availability.

Key Features

• Enterprise-Grade RAID Controller – High-performance controller designed for Dell PowerEdge servers.
• 12Gb/s SAS Data Transfer – Fast and reliable throughput for demanding storage environments.
• Supports Multiple RAID Levels – RAID 0, 1, 5, 6, 10, 50, 60 for redundancy and performance.
• 8 Internal SAS/SATA Ports – Connect multiple HDDs or SSDs via Mini-SAS HD (SFF-8643) connectors.
• 2GB DDR3/DDR4 Cache Memory – Improves read/write speeds and reduces latency.
• PCIe 3.0 x8 Interface – High-bandwidth connectivity with modern server motherboards.
• Enterprise Reliability – Hot-swap support, online RAID migration, and advanced error handling.

Where It Can Be Used

• Dell PowerEdge Servers for enterprise storage
• Data centers and cloud storage infrastructures
• Virtualization servers such as VMware, Hyper-V, or KVM
• Database and application servers needing high-speed storage
• Backup and archival servers with redundancy and high reliability

Installing Steps

1. Power Off the Server – Disconnect all power sources.
2. Insert the RAID Controller – Place into an available PCIe 3.0 x8 slot on the server motherboard.
3. Connect SAS/SATA Drives – Attach Mini-SAS HD (SFF-8643) cables to drives or backplane.
4. Install Optional Cache or Battery Module – Protect cached data during power interruptions.
5. Power On the Server – Enter RAID BIOS utility during boot (Ctrl+R or Ctrl+H).
6. Create RAID Array – Select drives and configure RAID level (RAID 5, 6, 10, etc.).
7. Install Drivers & Management Software – Use Dell OpenManage Storage Services or MegaRAID Storage Manager.

Compatible Server Models for DELL PERC H840 RAID Controller Card

The Dell PERC H840 is a high‑performance 12 Gb/s SAS RAID controller designed especially for Dell EMC PowerEdge server environments. It uses a PCIe 3.1 x8 interface and supports advanced RAID levels (0, 1, 5, 6, 10, 50, 60) with onboard cache, making it ideal for enterprise storage performance and redundancy.

✅ Dell EMC PowerEdge Server Models

• PowerEdge R440 – Rack‑optimized 1U server
• PowerEdge R540 – Versatile 2U server
• PowerEdge R640 – High‑density 1U rack server
• PowerEdge R650 – Mid‑generation performance rack server
• PowerEdge R740 – Scalable 2U rack server
• PowerEdge R740xd – Storage‑intensive 2U server
• PowerEdge R7415 – AMD EPYC™ rack server
• PowerEdge R7425 – Dual‑socket AMD EPYC™ platform
• PowerEdge R840 – High‑performance 2U server
• PowerEdge R940 – Scalable 3U rack server
• PowerEdge T440 – Tower server option
• PowerEdge T640 – Enterprise tower server

Additional compatible models include R7515, R7525, R750xa, R760 series when equipped with PCIe RAID support

FAQ for DELL PERC H840 RAID Controller Card

1. What is the Dell PERC H840 used for?

It manages multiple SAS and SATA drives in Dell PowerEdge servers, providing high-speed storage performance and data protection.

2. How many drives can it support?

Supports up to 8 internal drives, expandable with SAS expanders for larger storage arrays.

3. Does it support SSDs and HDDs?

Yes, fully supports both SAS and SATA SSDs/HDDs.

4. Which RAID levels are supported?

RAID 0, 1, 5, 6, 10, 50, and 60 for flexible storage configurations.

5. Can it be used in virtualization environments?

Yes, it is compatible with VMware, Hyper-V, and KVM virtualization platforms.

What is the price of DELL PERC H840 RAID Controller Card in Bangladesh?

The lowest price of DELL PERC H840 RAID Controller Card in Bangladesh is 29,000৳. You can buy the DELL PERC H840 RAID Controller at best price from our website or visit our Office.

For the most accurate pricing, stock availability, and warranty details, we recommend contacting us before placing your order.