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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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HPE P87741-425

HPE ProLiant Compute DL340 Gen12 6515P 2.3GHz 16c 1P 1x64GB-R 8SFF MR416i-o 2x1000W PS EU Server

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Lenovo 7X99A003EA

SR590 Xeon Silver 4108 (8C 1.8GHz 11MB Cache/85W) 16GB (1x16GB, 2Rx8 RDIMM), O/B, 930-8i, 1x750W, XCC Standard, Tooless Rails

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HPE P93220-425

HPE ProLiant DL345 Gen11 9115 2.6GHz 16c 1P 2x32GB-R 8SFF MR416i-p NC BCM5719 2x1000W PS EU Server

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Supermicro SYS-5028A-TN4

MTW BARE ATOM C2758F 4X3.5 250W 4GBE VGA 1PCIE IN

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Dell 8XR6N

Dell PowerEdge R640 8SFF V1 CTO 1U Rack Server

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APC AR4018X432

NetShelter CX 18U 750 mm Wide x 1130 mm Deep Enclosure White Finish

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HPE P71659-425

HPE ProLiant ML110 Gen11 - Server - Tower - 4.5U - 1-way

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HPE P84204-B21

HPE ProLiant Compute DL325 Gen12 GPU Configure-to-order Server

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IBM 7945E1U

IBM SYSTEM X3650 M3 2.26G 6/

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HPE P97631-425

HPE ProLiant DL360 Gen11 4510 2.4GHz 12c 1P 2x32GB-R 8SFF MR408i-o NC BCM5719 2x1000W PS EU Server

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Lenovo 7Y03A08GEA

SR570 Xeon Gold 6226R (16C 2.9GHz 22MB Cache/150W) 32GB 2933MHz (1x32GB, 2Rx4 RDIMM), O/B, 930-8i, 1x750W, XCC Enterprise, Tooless Rails

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IBM 7979B7U

IBM 7979B7U x3650 Server Quad Core X5460 3.16/1333/12mb, 2gb with Rail Kit zj

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Lenovo 7X04A07KEA

ThinkSystem SR550, 1xIntel Xeon Silver 4210 10C 2.2GHz 85W, 1x16GB 2Rx8, RAID 530-8i PCIe 12Gb Adapter, 1x750W, XCC Enterprise, ThinkSystem Toolless Slide Rail

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HPE S4R64A

HPE ProLiant DL380 Gen11 96TB 12LFF Configure-to-order Server for Cohesity

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Cisco NAC3350-2500-K9

NAC Appliance 3350 Server -max 2500 users

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Dell 04XP20

PowerEdge R740 16x2.5inch Server CTO

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Cisco CTI-CMS-1000-K9

Cisco Meeting Server 1000

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HPE S6V65A

HPE Alletra Storage MP X10000 Data Intelligence Node Bundle

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Lenovo 7D2VA01LEA

ThinkSystem SR665, 1xAMD EPYC 7302 16C 155W 3.0GHz 155W, 1x32GB 2Rx4, ThinkSystem Raid 940-8i 4GB Flash PCIe Gen4 12Gb Adapter, 1x750W, XCC Enterprise,

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HPE 438088-001

DL580 G5 E7320 2.13 2P 4G

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HPE P74169-B21

HPE ProLiant Compute XD230 Configure-to-order Server

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HPE P06963-B21

HPE DL20 Gen10 4SFF CTO Svr

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Lenovo 7Y51A07AEA

ThinkSystem SR250, 1xIntel Xeon E-2234 4C 3.6GHz 71W, 1x16GB 2Rx8, SW RD, 1x300W, ThinkSystem SR250/SR150 Slide Rail Kit

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Lenovo 7X16A06KEA

ThinkSystem SN550, 1xIntel Xeon Silver 4216 16C 2.1GHz 100W, 1x32GB 2Rx4,

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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.