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Silver rack-mount server chassis with four 3.5-inch drive bays and front panel controls

DELL

DELL PowerEdge R640 4LFF 2x Xeon Silver 4215R 128GB DDR4 rack server

SKU CH-WFEH-PSNA9

Rack server with two 3.2 GHz Xeon Silver 4215R CPUs, 128 GB DDR4 and PERC H740P controller in a 4-bay 3.5" chassis

  • ProcessorIntel Xeon
  • Installed RAM128 GB
  • Type of memoryDDR4
  • Processor speed3.2 GHz
  • Installed CPUs2
  • Max supported CPUs2
  • Dual Xeon Silver 4215R at 3.2 GHz for multi-threaded throughput
  • 128 GB DDR4 ECC registered memory for large datasets
  • Four 3.5" drive bays with PERC H740P RAID controller for flexible storage
  • iDRAC9 Enterprise remote management for lights-out administration
  • Dual 750 W power supplies for redundant operation

Dual-processor Xeon rack server

The Dell PowerEdge R640 arrives with two Xeon Silver 4215R processors running at 3.2 GHz and 128 GB of DDR4 ECC registered memory. It fits a standard 1U rack space and supports up to four 3.5-inch drive bays. This configuration targets IT teams building virtualisation hosts, database nodes or high-density compute clusters that need dual-socket performance in a compact form factor.

PERC H740P RAID controller

The bundled PERC H740P hardware RAID controller manages SATA drives with cache-backed data protection. A dual-port 10 GbE 562T network adapter is also installed, providing high-throughput connectivity for storage replication or VM migration. iDRAC9 Enterprise remote management is licensed, enabling out-of-band monitoring, firmware updates and power control without an operating system.

Verify rack depth and power infrastructure before

The chassis measures 36 inches deep, so confirm your cabinet can accommodate that length with cable clearance. Two 750 W power supplies are fitted; ensure your PDU circuits and plug types match the supplied units. Drive bays are empty, so source compatible 3.5-inch SATA drives and caddies separately. Rail kits are available on request but not included by default.

How it compares

Measured against everything we stock in Rack & Tower Servers, at today’s prices. Recalculated every night.

Price $1,690.99
Cheaper than about 55% of the 17,641 comparable items (median $1,910.99).
Installed RAM 128 GB
Typical for this category: the median of 15,103 items is 128 GB.
Processor speed 3.2 GHz
Higher than about 92% of the 9,950 comparable items (median 2.3 GHz).

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Specifications

Product
Brand nameDELL
Product linePowerEdge
Model nameRack Mount
Product typeRack
Processor
ProcessorIntel Xeon
Processor speed3.2 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM128 GB
Type of memoryDDR4
Maximum RAM capacity7.68 TB
Storage
Installed storage48,00
Disk controllerDell PERC H740P Controller
Drive interfaceSATA
Graphics
Graphics chipIntegrated Graphics
Size & build
Product dimensions36 × 24 × 10 in
More details
Management controlleriDRAC9 - Enterprise License

Questions about this item

What maintenance will the PERC H740P RAID controller and its battery-backed cache require over time?

The PERC H740P controller includes a battery-backed cache module that typically needs replacement every three to five years to protect data during power loss; the controller firmware is already updated to the latest stable version.

Which limit appears first when the dual Xeon Silver 4215R CPUs run at 3.2 GHz continuously?

Thermal limits are reached before power limits; the 2U chassis relies on high-speed fans to cool two 8-core processors and 128 GB of DDR4 ECC memory under sustained load.

How loud and how much power does the server draw with two 750 W supplies running all day?

Dual 750 W supplies provide redundancy; under full load the system can draw close to 750 W and fan noise rises to data-centre levels, so plan for a cooled rack environment.

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