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Rack servers for businesses: high density, clean structure, reliable performance

A rack server bundles computing power in a space-saving manner in a server cabinet – ideal for standardized, scalable IT landscapes. Whether 1U for web workloads or 2U for virtualization: a well-designed rack system reduces effort, costs, and downtime.

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Lenovo 7X69A002EA

SR860 - 4 x Xeon Gold 5118 (12C 2.3GHz 16.5MB Cache/105W) 128GB(4x32GB, 2Rx4 RDIMM), O/B, 930-8i, 2x2000W, Rails, XCC Enterprise

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Cisco CPS-UCS-1RU-K9

Cisco Connected Safety and Security UCS C220 - Server - rack-mountable - 1U - 2-way - 1 x Xeon E5-2609 / 2.4 GHz - RAM 8 GB - SAS - hot-swap 3.5in bay(s) - no HDD - G200e - GigE - monitor none

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Aruba 589150-001

DL380 G7 E5630 2.53 1P 6G SFF Base

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Lenovo 7X99A039EA

Lenovo ThinkSystem SR590 - 2,1 GHz - 4110 - 16 GB - DDR4-SDRAM - 750 W - Rack (2U)

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HPE S0V51A

HPE ProLiant DL360 Gen11 Solution Server

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IBM 7979EFU

IBM SYSTEM X3650 2.66G 12 4/

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IBM 71413BU

IBM SYSTEM X3950 M2 2X2.40G

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IBM 5462AC1

Lenovo System x3650 M5 Configure To Order SFF

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IBM 72335LU

IBM SYSTEM X3850 M2 2X2.40G

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Lenovo 7X02A085EA

ThinkSystem SR630, 1xIntel Xeon Gold 5218 16C 2.3GHz 125W, 1x16GB 2Rx8, RAID 930-16i 4GB Flash PCIe 12Gb Adapter, 1x750W, XCC Enterprise, ThinkSystem Toolless Slide Rail

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Lenovo 7X16CTO1WW

Lenovo ThinkSystem SN550 Server (Xeon SP Gen 2)

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Lenovo 5463A2U

Lenovo Server System x3550 M5 Xeon E5 v3 Six-Core 1.60 GHz Bus Speed 1600 Mhz 15 MB Cache

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IBM 7947E1U

EXPRESS IBM SYSTEM X3650 M2 1.86G 4

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Lenovo 8871CTO

Lenovo System x3650 M5 Configure To Order SFF

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HPE S5T35A

HPE Cray Supercomputing Storage Systems K3000 System Management Unit Controller

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Lenovo 7X06A0J5EA

ThinkSystem SR650, 2xIntel Xeon Gold 6248 20C 2.5GHz 150W, 12x32GB 2Rx4, 128GBx1 SATA, ThinkSystem M.2 with Mirroring Enablement Kit, 2x1600W, XCC Enterprise, ThinkSystem Toolless Slide Rail

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Lenovo 7X04A078EA

ThinkSystem SR550, 1xIntel Xeon Silver 4210 10C 2.2GHz 85W, 1x16GB 2Rx8, RAID 930-16i 4GB Flash PCIe 12Gb Adapter, 1x750W, XCC Enterprise, ThinkSystem Toolless Slide Rail

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Lenovo 794582G

Lenovo System x3650 M3 3.46GHz X5690 675W Rack (2U) Server

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IBM 7145-AC1

X3850 X5 xSeries Server Configure to Order

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Lenovo 7X08A01VEA

Lenovo SR530 - 2,1 GHz - 4110 - 16 GB - DDR4-SDRAM - 750 W - Rack (1U)

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HPE S7V58A

HPE Alletra Storage MP X10000 High Performance Data Intelligence Node Bundle

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Lenovo 7X99A01KEA

SR590 Xeon Gold 5120 (14C 2.2GHz 19.25MB Cache/105W) 16GB (1x16GB, 2Rx8 RDIMM), O/B, 930-8i, 1x750W, XCC Standard, Tooless Rails

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Cisco UCSC-C22-M3S

UCS C22 M3 SFF w/ rail kit, w/o PSU, CPU, mem, HDD, PCIe

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Lenovo 7Y03A03REA

SR570 Xeon Silver 4216 (16C 2.1GHz 22MB Cache/100W) 32GB(1x32GB, 2Rx4 RDIMM), O/B, 930-8i, 1x750W, XCC Enterprise, Tooless Rails

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What is a rack server and when is it worthwhile?

A rack server is a standardized enclosure (usually 19 inches) for mounting in a rack for servers. It allows high density, clear cabling, and efficient cooling – from edge locations to data centers.

Typical areas of application:

  • Virtualization, databases, file services
  • Private cloud and container workloads
  • VDI/terminals, ERP/CRM, backup targets 

Advantages at a glance 

  • Scalability: Easy expansion with additional height units (U) 
  • Service-friendly: Front access, rail systems, hot-swap components 
  • Standardization: Uniform 19-inch infrastructure, predictable spare parts 

Which rack system is right for you? 19-inch, 10-inch, or mini rack 

The 19-inch server rack is the corporate standard. It offers maximum manufacturer and accessory compatibility (PDU, KVM, cable management). In confined IT rooms, shops, or PoS environments, 10-inch server rack solutions are an option. For branch offices, a mini rack server with a short depth and low noise level is ideal. 

Planning dimensions correctly 

  • Height units (U): 1U/2U determine density and expandability 
  • Depth: Take into account device and cable space (rails, connectors, bending radii) 
  • Cooling & airflow: Front-to-rear, blanking panels to prevent bypass airflow 

Top manufacturers: Dell, HPE, and Lenovo 

Performance, availability, and lifecycle services are key purchasing factors. 

  • Dell rack servers: PowerEdge series with broad CPU/RAM scaling, iDRAC management, and a strong ecosystem. 
  • Hewlett Packard rack servers: HPE ProLiant with iLO management, smart storage, and sophisticated security functionality. 
  • Lenovo server rack: ThinkSystem with high efficiency, versatile RAID options, and quiet acoustic profile. 

Important selection criteria when purchasing a rack server 

Requirements should be clearly defined before purchasing. 

Performance & architecture 

  • CPU: Plan cores per license model and workload (VM density, DB threads) 
  • RAM: Reserve for cache, in-memory shares, and future upsizing steps 
  • Storage: NVMe/SAS mix for latency and capacity; consider RAID/erasure coding 

Network & expansions 

  • Ports: 1/10/25/40/100 GbE according to traffic profile; Check SFP+/DAC compatibility 
  • IO slots: Allow space for HBAs, GPUs, or backup controllers 
  • Out-of-band: Remote management (iDRAC/iLO/XClarity) for 24/7 operation 

Operation & Availability 

  • Redundancy: Dual PSU, hot-swap fans, multipath network; define spare parts logic 
  • Lifecycle: Firmware path, support contracts, spare parts availability 

Rack servers: new, used, and refurbished at it-market 

At it-market, you can find a variety of rack servers in tested quality – new, used, or refurbished. 

We offer: 

  • 3-year warranty for companies
  • Up to 2,500 euros buyer protection 
  • Short delivery times 

Do you have any questions? Our sales team is happy to answer any questions you may have about IT hardware and IT remarketing.