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 front with eight 2.5 inch drive bays and bezel

DELL

DELL PowerEdge R640 1U rack server 2× Xeon Gold 6148 2.4GHz 20-core 256GB DDR4 8× 800GB SSD

SKU CH-RAY3-0A47N

Dual 20-core Xeon Gold 6148 at 2.4 GHz with 256 GB DDR4 and eight 800 GB SATA SSDs 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 cores at 2.4 GHz base clock
  • 256 GB DDR4 ECC memory across 24 slots supports up to 3 TB capacity
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with 2 GB cache
  • Eight 800 GB SATA SSDs installed in 2.5 inch hot-swap bays
  • iDRAC9 Enterprise plus quad-port 1/10 GbE networking for remote management

Dual-socket 1U rack server

This Dell PowerEdge R640 is a 1U rack server built around two Intel Xeon Gold 6148 processors running at 2.4 GHz with 20 cores each. It ships with 256 GB of DDR4 registered ECC memory across 24 slots and eight 800 GB SATA solid-state drives managed by a PERC H730P controller. Redundant 750 W platinum power supplies, iDRAC9 Enterprise remote management, and a quad-port 1/10 GbE network daughter card are included.

Suits dense virtualisation and scale-out workloads

The 40 combined cores and 256 GB DDR4 capacity fit virtualisation hosts, container clusters, and high-density compute farms that need redundant power and remote management in a single rack unit. Buyers who require more than 3 TB of memory, additional drive bays beyond the eight 2.5-inch slots, or a different storage interface should evaluate other platforms because this unit maxes at 3 TB and uses SATA SSDs only.

PERC H730P RAID controller decides storage topology

The installed Dell PERC H730P 2 GB controller supports RAID 0, 1, 5, 6, 10, 50, 60 and pass-through modes across the eight SATA SSDs, determining data redundancy and performance characteristics. Verify that the RAID levels and 12 Gb/s SAS/SATA connectivity match the intended workload before deployment.

Highlights

  • Dual Xeon Gold 6148 CPUs deliver 40 cores at 2.4 GHz base clock
  • 256 GB DDR4 ECC memory across 24 slots supports up to 3 TB capacity
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with 2 GB cache
  • Eight 800 GB SATA SSDs installed in 2.5 inch hot-swap bays
  • iDRAC9 Enterprise plus quad-port 1/10 GbE networking for remote management

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 Size256GB
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

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What does the 2.4 GHz base clock on the Xeon Gold 6148 mean for sustained workloads in this 1U server?

The dual 20-core processors run at 2.4 GHz base with a 3.7 GHz turbo ceiling, giving 40 total cores for parallel tasks while the 1U form factor relies on the redundant 750 W supplies and integrated cooling to maintain clocks under load.

How does the PERC H730P controller and SATA interface limit the eight 800 GB SSDs in practice?

The H730P provides 12 Gb/s SAS/SATA connectivity with 2 GB cache and battery-backed write cache, supporting RAID 0, 1, 5, 6, 10, 50, 60 and pass-through, so the SATA SSDs operate at their 6 Gb/s link speed within any of those RAID modes.

What physical mounting hardware is included for the 1U rack chassis?

The unit ships with Ready Rails sliding rails and a front bezel, allowing tool-less installation in a standard four-post rack cabinet.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.