We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver 1U rack server with front bezel, eight 2.5-inch drive bays and redundant power supplies

DELL

DELL PowerEdge R640 1U 2x Xeon Gold 6148 20C 2.4GHz 256GB DDR4 8x 2.4TB SAS H730P

SKU CH-0N15-EHFM7

Dual-socket 1U rack server with 40 total cores, 256 GB DDR4 ECC, eight 2.4 TB SAS drives and PERC H730P RAID controller

  • ProcessorIntel Xeon
  • Installed RAM256 GB
  • Video RAM8 MB
  • Installed SSDNo
  • ChipsetIntel C620
  • Processor core count20-Core Processor
  • Dual 20-core Xeon Gold 6148 processors deliver 40 total cores for heavy workloads
  • 256 GB DDR4 ECC memory across 8 slots supports large datasets
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • Eight 2.4 TB 10K SAS drives provide high-capacity enterprise storage
  • iDRAC9 Enterprise plus quad-port 1/10 GbE give remote control and fast networking

Dual-Socket 1U Server Platform

The Dell PowerEdge R640 is a 1U rack server built for dense scale-out deployments. It ships with two Intel Xeon Gold 6148 processors, each delivering 20 cores at 2.4 GHz with 3.7 GHz turbo. The system includes 256 GB of DDR4 registered ECC memory across eight 32 GB modules and dual 750 W platinum power supplies for redundancy.

Compute-Dense Workloads vs. Expansion Needs

This configuration suits virtualisation clusters, database nodes and high-performance computing tasks that benefit from 40 total cores and large memory capacity in a single rack unit. The eight-bay 2.5-inch chassis filled with 2.4 TB SAS drives leaves no room for additional internal storage, so buyers who need more drive bays must look elsewhere.

PERC H730P RAID Controller Decides Fit

The installed Dell PERC H730P 2 GB controller provides 12 Gb/s SAS and SATA connectivity with hardware RAID levels 0, 1, 5, 6, 10, 50 and 60 plus pass-through mode. Confirm this controller matches your storage topology and RAID requirements before purchase.

How it compares

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

Price $3,790.99
Pricier than about 71% of the 17,641 comparable items (median $1,910.99).
Installed RAM 256 GB
Higher than about 60% of the 15,103 comparable items (median 128 GB).
Video RAM 8 MB
Typical for this category: the median of 8,309 items is 0.01 GB.

New to this? Buying server hardware with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameDELL
Product linePowerEdge R640
Model nameR640
Product typeRack
Processor
ProcessorIntel Xeon
Processor core count20-Core Processor
Processor socketLGA 3647
ChipsetIntel C620
Processor speed2.4 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM256 GB
Type of memoryDDR4
Maximum RAM capacity3 TB
Memory slot count24
Storage
Installed SSDNo
Disk controllerDell Perc H730P 2 GB Controller
Drive interfaceSAS
Supported RAID levelsRAID 0/1/5/6/10/50/60
Graphics
Video RAM8 MB
Graphics chipMatrox G200
Connectivity
Network controllerDell Intel X520/I350 Quad Port 2x 1GbE 2x 10Gb SFP+ Network Daughter Card
Ports & slots
Network ports4 x Ports
Expansion card slotsUp to 3 PCIe Gen 3 slots all x16
Management interfaceRJ 45
Power
Hot-swap redundant PSUYes
Size & build
Rack height1U
Software
Operating systemNo

Other versions of this model

5 more in the same range

Questions about this item

How many CPU cores does the dual Xeon Gold 6148 configuration provide for sustained workloads?

The two Xeon Gold 6148 processors deliver 20 cores each, giving 40 cores total at 2.4 GHz base with 3.7 GHz turbo for heavy sustained compute.

What is the power draw of the redundant supplies when the server runs continuously?

Dual 750 Watt platinum-efficiency power supplies share the load, providing redundancy while keeping heat and fan noise lower under all-day operation.

Which memory modules must already be on hand to expand the 256 GB DDR4 installation?

The system uses DDR4 2666 MHz registered ECC DIMMs; 24 slots are available and 8 are populated with 32 GB modules, so matching DDR4 RDIMMs are required for expansion.

More in Rack & Tower Servers

Similar items