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Silver 1U rack server with eight 2.5 inch drive bays, front bezel and sliding rails

DELL

Dell PowerEdge R640 1U Server 2x Xeon Gold 6148 2.4GHz 20 Core 128GB DDR4 8x 800GB SSD H730P

SKU CH-K8AP-J9F6F

Dual 20-core Xeon Gold 6148 server with 128GB DDR4, eight 800GB SATA SSDs on an H730P controller, and quad-port 1GbE/10Gb SFP+ networking in a 1U rack chassis

  • TypeRack
  • Rack Height1U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.40 GHz
  • CPU SocketLGA 3647
  • Dual Xeon Gold 6148 CPUs deliver 40 total cores for heavy workloads
  • 128 GB DDR4 ECC memory supports large datasets and virtualization
  • PERC H730P controller enables RAID 0, 1, 5, 6, 10, 50, 60
  • Eight 800 GB SATA SSDs provide fast, reliable storage capacity
  • iDRAC9 Enterprise gives full remote management and monitoring

Dual-socket 1U platform for dense compute

The Dell PowerEdge R640 fits two Intel Xeon Gold 6148 processors, each with 20 cores at 2.4 GHz and a 3.7 GHz turbo frequency, into a single rack unit. It ships with 128 GB of DDR4 2666 MHz registered ECC memory across eight 16 GB modules, leaving 16 of the 24 DIMM slots free for expansion up to 3 TB. The system targets workloads that demand high core counts in a compact footprint.

Redundant power and flexible I/O in a hot-swap

Two 750 W platinum-efficiency power supplies provide N+1 redundancy with hot-swap replacement. The front panel holds eight 2.5-inch drive bays populated with 800 GB SATA SSDs driven by a PERC H730P 2 GB controller supporting RAID 0, 1, 5, 6, 10, 50 and 60. A quad-port network daughter card adds two 1 GbE and two 10 Gb SFP+ connections, while iDRAC 9 Enterprise enables full remote management. Rails and a front bezel are included for immediate rack mounting.

Verify rack depth, memory growth path

Confirm that your rack can accommodate the 1U height and that power distribution can deliver two 750 W feeds. Plan DDR4 registered ECC modules only; the 16 vacant slots support up to 3 TB total but require matched population rules. The SFP+ ports need compatible transceivers and cabling for 10 Gb links, and the PERC H730P battery should be checked for cache protection during unexpected power loss.

Highlights

  • Dual Xeon Gold 6148 CPUs deliver 40 total cores for heavy workloads
  • 128 GB DDR4 ECC memory supports large datasets and virtualization
  • PERC H730P controller enables RAID 0, 1, 5, 6, 10, 50, 60
  • Eight 800 GB SATA SSDs provide fast, reliable storage capacity
  • iDRAC9 Enterprise gives full remote management and monitoring

Specifications

BrandDELL
SeriesPowerEdge R640
ModelR640
TypeRack
Rack Height1U
Redundant Hot-swap PowerYes
CPU TypeIntel Xeon
CPU Speed2.40 GHz
CPU SocketLGA 3647
Number of CPU Cores20-Core Processor
# of Processors Installed2
MAX Processors2
ChipsetIntel C620
Installed Memory Size128GB
Memory TypeDDR4
Max Memory Capacity3TB
Number of Memory Slots24
Storage ControllerDell Perc H730P 2GB Controller
HDD InterfaceSATA
SSD (Installed)8 x 800GB SATA SSD
Raid LevelRAID 0/1/5/6/10/50/60
GPU TypeMatrox G200
Video Memory8MB
Ethernet ControllerDell Intel X520/I350 Quad Port 2x 1GbE 2x 10Gb SFP+ Network Daughter Card
LAN Ports4 x Ports
Expansion SlotsUp to 3 PCIe Gen 3 slots all x16
Management PortRJ 45
Operating SystemNo
Features8 x 2.5" SATA/SAS Hot-Plug Drive Bays

Other versions of this model

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Questions about this item

What storage interface does the PERC H730P controller use, and what throughput does it cap at?

The PERC H730P is a 12 Gb/s SAS/SATA controller; installed drives are SATA 6 Gb/s SSDs, so the practical link speed is limited to 6 Gb/s per drive.

What rack space and mounting hardware does this 1U server require?

It occupies 1U of rack height and ships with ready rails for tool-less mounting in standard 4-post racks.

How are the CPUs and memory installed, and which step is often missed?

Both Xeon Gold 6148 processors are pre-installed in LGA 3647 sockets; the 128 GB DDR4 2666 MHz registered ECC DIMMs are already seated across the 24 slots — no further installation is needed.

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