Refurbished Dell PowerEdge R840 Servers

Alta Technologies buys & sells new, used, and refurbished Dell PowerEdge R840 Servers and upgrades. Whether you need a fully configured system or simply require a feature or part, we carry a broad array of used Dell R840 Server hardware. We also buy your excess equipment.

Contact us about complete systems or parts Refurbished Dell PowerEdge R840 Servers

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Customer-Focused IT Hardware

Since 1995, we've poured all of our efforts into delivering products that match our client's expectations and exceeds their price savings target.

With our huge inventory and industry-leading engineers, customers tell us they trust Alta for our reliability, custom configurations, parts responsiveness, lightning fast delivery and savings to boot.

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TechFixers

An IT Geek's Dream

“I have visited Alta’s warehouse, and they have just about everything.. It’s kind of like an IT Geek’s Dream in there.”

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Trust & Longevity

“We trust Alta with refurbished equipment. The longevity of the product is just the same as if I had bought it from the distributor.”

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Ryan

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Huge Inventory

"Aisles and aisles of servers & IT equipment. Experts at what they do."

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Refurbished Dell R840 Information

The Dell PowerEdge R830 4S 2U Rack Server is an innovative solution to gain insights faster. It comes with up to 24 Direct-attached NVMe drives that minimize latency. Due to its unprecedented performance density (in-database analytics) and consistent results (demanding applications), the R830 is a powerful server with large memory. Simplify IT infrastructure management of your complex workloads with OpenManage and focus on your other critical business objectives. The R830 effortlessly maximizes enterprise data center uptime with integrated security and proven reliability.

Ideal workloads: Data-intensive applications and Data analytics
Boost performance with up to four 2nd Generation Intel® Xeon® Scalable processors and up to 112 processing cores
Address large data sets with up to 48 DIMMs (24 of which can be DCPMMs) and up to 15.36TB of memory
Scale capacity and performance with up to 26 2.5” HDDs/SSDs (up to 24 NVME drives)
Accelerate applications with two doublewide GPUs or two FPGAs
Speed data transfers with fully integrated ultra path interconnect (UPI)
Improve efficiency with agent-free iDRAC9 with Lifecycle Controller for automated, simplified management
Deploy OpenManage Enterprise as a virtual appliance in your choice of ESXI, Hyper-V, or KVM environments
Use OpenManage Integrations or Connections to manage PowerEdge servers with existing console investments.
Resolve issues with up to 72% less IT effort using automated proactive and predictive technology from ProSupport Plus and SupportAssist.

DELL 2U SERVER MODELS

Dell R840 Specifications

Server Type: 2U Rack Server

Processors: 4 x Xeon Processor Scalable

Memory: 48 DIMM Slots (Fully expandable up to 6TB DDR4 2933 MT/s RDIMM and LRDIMM)

Drives: 8 Drive Slots ( Up to 8x 2.5" SAS/SATA/SSD drives)

Remote Access Card: iDRAC9

Storage Controllers: Required to recognize hard drives, H330, H730P, H740P

Optical Drive: DVD (ROM or RW)

Rails: Sliding (Stab-in or Drop-in)

Power Supply: 750W, 1100W, 1600W, 2000W & 2400W

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Why Business Rely on ALTA

Ship Today

Global Logistics and an IN-STOCK inventory allow us to ship your systems, switches or parts Today!24/7 Emergency Parts Available for pickup as well.

Save 30-80%

Not only reliable, but with discounts up to 80% off of new, we have thousands of satisfied clients worldwide. Meet your IT project needs for less.

Trade-Ins & Equipment Buy-Back

We buy back your excess IT equipment for cash offer or trade, providing full data erasure services

Since 1995

Our product experts know servers, storage and networking equipment, delivering decades of experience in IT hardware.

About Our Used Dell R840 2U Server

Looking for enterprise-grade performance without the enterprise-grade price? At Alta Technologies, we offer refurbished Dell R840 servers built to meet the compute demands of modern data centers. Designed for heavy virtualization, analytics, and memory-intensive workloads, the used Dell PowerEdge R840 delivers robust scalability and performance, without the cost of new hardware.

Every server is professionally refurbished by Alta Technologies, tested through our multi-point inspection process, and ready for immediate deployment. With over 30 years of experience, Alta is a trusted provider of refurbished PowerEdge R840 servers to IT professionals, resellers, and data center engineers worldwide.

Why Choose a Refurbished Dell R840 Server?

Enterprise-Ready Performance

The Dell PowerEdge R840 is a 4-socket, 2U rackmount server optimized for in-memory databases, high-speed analytics, and virtualization. Featuring support for up to four Intel Xeon Scalable processors and up to 6TB of DDR4 memory, the refurbished R840 delivers dense compute performance for mission-critical workloads.

Whether you’re managing structured data lakes or complex virtual environments, the R840 remains one of Dell’s most capable servers, offering consistent performance, advanced manageability with iDRAC9, and secure integration into enterprise ecosystems.

High Memory & I/O Scalability

With 48 DIMM slots, the refurbished PowerEdge R840 supports vast memory footprints, including high-capacity RDIMMs and LRDIMMs. The system’s flexible storage chassis allows for various configurations, supporting up to 8 x 2.5" drives by default, and in some models, up to 26 drive bays or 24 NVMe SSDs, depending on chassis and backplane.

For environments requiring acceleration, certain configurations support doublewide GPUs or FPGAs, enabling compute-optimized tasks such as AI inference, HPC, or analytics acceleration, where supported and configured.

Cost‑Effective Alternative to New Equipment

Choosing a refurbished Dell R840 offers significant savings, ranging from 30% to 80% off OEM list pricing, without compromising enterprise-level performance. Each server is pulled from working, climate-controlled environments and tested in-house by our experienced technicians.

Alta ensures that every used Dell PowerEdge R840 server is rebuilt using tested and compatible upgrades, delivering reliability at a fraction of the cost of new systems.

Sustainable IT & Circular Economy Value

Investing in used PowerEdge R840 servers also supports your organization’s sustainability goals. Alta is R2v3 certified, reflecting our commitment to responsible reuse, e-waste reduction, and extending the IT asset lifecycle.

From IT asset recovery to resale and refurbishment, Alta supports the circular economy by keeping enterprise hardware in productive use and out of landfills.

What to Look for When Buying a Refurbished Dell R840

Understand Refurbished Grading & Quality Standards

Alta Technologies is an independent refurbisher and is not affiliated with any original equipment manufacturers (OEMs), such as Dell. That means we don’t use OEM-specific terms such as “certified refurbished.” Instead, every server we offer, such as the refurbished Dell R840, undergoes our own rigorous, in-house refurbishment process.

Vendor Warranty & Support Services

All servers are backed by an Alta warranty, with options for extended coverage and SLA-driven support plans. Our clients rely on us for responsive post-sale service, including emergency logistics and advance replacements.

Compatibility with Your Current Infrastructure

Our refurbished PowerEdge R840 servers are commonly deployed in environments running VMware, Windows Server, Linux, and Hyper-V. Configuration assistance is available to help ensure compatibility with your infrastructure

Upgradeability and Spare Part Availability

Need more power? Alta offers a wide range of tested and compatible upgrades, including CPUs, memory, storage, and RAID options. We also stock matching parts to support extended maintenance or third-party TPM agreements.

Why IT Pros Trust Alta Technologies for Refurbished Dell R840

Over 30 years of IT hardware experience
One of the largest inventories of used R840 servers in North America
Flexible, custom builds delivered fast, usually within 24-48 hours
Deep inventory of parts and upgrades for refurbished PowerEdge R840 servers
Real-time shipping, emergency fulfillment, and dedicated tech support
Independent from any OEMs, no affiliations, no conflicts
Committed to reuse, right-to-repair, and the circular economy

Feature	Specification
Server Type	2U Rackmount
CPU Support	Up to 4 × Intel® Xeon® Scalable Processors
Memory Capacity	Up to 6TB DDR4 (48 DIMM slots, 2933 MT/s)
Drive Support	Up to 8 × 2.5” SAS/SATA/SSD; optional configs support up to 26 drives or 24 NVMe SSDs
Remote Management	iDRAC9 with Lifecycle Controller
RAID Controllers	H330, H730P, H740P (based on config)
GPU/FPGA Support	Up to 2 × doublewide GPUs or FPGAs (if supported)
Power Supply Options	750W, 1100W, 1600W, 2000W, 2400W
Rail Kits	Sliding stab-in or drop-in rails (upon request)
Server hardware specifications overview