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Dell PowerEdge R340

End of saleServers1U rack
Dell PowerEdge R3401U rack8 × SFF 2.5" bays1 socket4 DIMMs

The Dell PowerEdge R340 is an enterprise 1U rack server powered by 1 Intel Xeon E-2100 and E-2200 Series, Core i3, or Pentium Processors (up to 8 cores, 95W TDP) and 4 memory slots supporting up to 64GB DDR4-2666 ECC UDIMM. Configured with Up to 8x 2.5-inch hot-swap SAS/SATA or 4x 3.5-inch hot-swap SAS/SATA drives and Up to 3 PCIe Gen3 slots, the R340 delivers balanced compute and I/O density for enterprise database, hypervisor, and application workloads.

Also written as: PowerEdge R340, Dell R340, R340 1U Server

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Specifications

BrandDell
FamilyPowerEdge R
Form factor1U rack
ReleasedNov 2018
End of saleOct 2022
End of supportNov 2027
Cpu sockets1
Cpu platformIntel Xeon E-2100 and E-2200 Series, Core i3, or Pentium Processors (up to 8 cores, 95W TDP)
Memory slots4
Memory typeDDR4-2666 ECC UDIMM
Memory max (GB)64
Drive baysUp to 8x 2.5-inch hot-swap SAS/SATA or 4x 3.5-inch hot-swap SAS/SATA drives
Pcie slotsUp to 3 PCIe Gen3 slots
Gpu supportNone supported
Network onboard2x 1GbE LOM ports; 1x 1GbE iDRAC9 port
Power supplyDual redundant hot-plug 350W or 550W Platinum

Generations

About the R340

The Dell PowerEdge R340 is an enterprise 1U rack server engineered for computing and virtualization workloads. Powered by 1 Intel Xeon E-2100 and E-2200 Series, Core i3, or Pentium Processors (up to 8 cores, 95W TDP) across 4 memory slots supporting up to 64GB DDR4-2666 ECC UDIMM, the R340 balances throughput and memory capacity. In Dell's server catalog, the R340 succeeded the POWEREDGE-R330 and was followed by the POWEREDGE-R350, positioned alongside rival systems including PROLIANT-DL20-GEN10.

Options and compatibility

Processor support on the R340 utilizes 1 LGA1151 sockets with thermal heatsinks matching CPU power envelopes. System memory slots on the R340 require DDR4-2666 ECC UDIMM modules, and mixing RDIMM with LRDIMM memory is not supported. Front backplanes on the R340 accommodate either DXD9H (2.5-inch SFF) or X7K8W (3.5-inch LFF) trays based on chassis option. Networking on the R340 uses Network Daughter Card (NDC), and expansion cards install into Up to 3 PCIe Gen3 slots risers.

How to identify it

Physical identification of the R340 is verified by the 14th-generation silver-gray brushed aluminum honeycomb bezel with the R340 badge on the front chassis ear. The pull-out information tag on the R340 control panel displays the 7-character Dell Service Tag and default login credentials. In iDRAC9, the server identifies as R340 with active firmware, slot mapping, and power telemetry.

Buying used

When evaluating a pre-owned R340, inspect the LGA1151 CPU socket pins for damage and ensure retention clips are intact. Run Dell ePSA diagnostics across all 4 memory slots of the R340 to verify zero uncorrectable ECC faults under load. Verify that redundant power supplies in the R340 match in wattage and that iDRAC9 Enterprise remote console is enabled. Ensure required R340 drive caddies and bracket accessories are present.

Reference prices (last 12 months, updated 2026-10-27)

Refurbished: EUR 550 (1 sighting, Oct 2026)

All sightings
SellerConditionPriceNoteSeen
servermall.comrefurbishedEUR 550ex-vat2026-10-27

Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.

Compatible parts

Bezels

Memory

Hard drives

Power supplies

Rail kits

RAID controllers

Works together

How the Dell PowerEdge R340 connects to servers, storage and the network: 4 ways, with the parts and products on each path.

Fibre Channel SANiSCSI and NVMe/TCP over EthernetDirect-attached SASFile storage (NFS and SMB)

Fibre Channel SAN

Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).

Adapters for the server (check the fit list)

Switches

Storage

Optics

Fibre Channel SAN: how it fits together

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Adapters for the server (check the fit list)

iSCSI and NVMe/TCP over Ethernet: how it fits together

Direct-attached SAS

12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.

Adapters for the server (check the fit list)

Storage

Direct-attached SAS: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Adapters for the server (check the fit list)

Storage

File storage (NFS and SMB): how it fits together

Plan and size it

Equivalent models from other brands

FAQ

What RAM is required for the PowerEdge R340?

It requires DDR4-2666 ECC Unbuffered DIMMs (UDIMMs), up to 64GB total.

Does the R340 support redundant power supplies?

Yes, it supports dual hot-plug 350W or 550W redundant Platinum power supplies.

Buying or selling R340?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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Sources