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 System x3650 M5 5462 - Server - rack mount
SR590 Xeon Gold 5118 (12C 2.3GHz 16.5MB Cache/105W) 16GB (1x16GB, 2Rx8 RDIMM), O/B 3,5 inch (8), 530-8i, 1x750W, XCC Standard, Tooless Rails
Lenovo SR630 - 2,1 GHz - 4110 - 32 GB - DDR4-SDRAM - 750 W - Rack (1U)
Lenovo System x3550 7978 - Server - Xeon DP 2,33 GHz - RAM:1 GB HDD:1 GB SAS SAS1 - CDRW/DVD Combo - 1 HE
Lenovo .Server System x3650 M4 Xeon E5 v2 Six-Core 2.10 GHz Bus Speed 7.20 GT/s 15 MB
ThinkSystem SR630, 1xIntel Xeon Gold 5218 16C 2.3GHz 125W, 1x16GB 2Rx8, RAID 930-8i 2GB Flash PCIe 12Gb Adapter, 1x750W, XCC Enterprise, ThinkSystem Toolless Slide Rail
Lenovo .Server System x3550 M5 Xeon E5 v4 Eight-Core 2.10 GHz Bus Speed: 8.00 GT/s 20 MB Cache RAM 16 GB No Hard Drive 2.5in No Optical Local Area Network Capable 4 x Gbit Enabled (1.00 Gbps) 1x 900 Watts PS ServeRAID M1215 No OS Installed No License
ThinkSystem SR550, 1xIntel Xeon Silver 4216 16C 2.1GHz 100W, 1x16GB 2Rx8, RAID 930-8i 2GB Flash PCIe 12Gb Adapter, 1x750W, XCC Enterprise, ThinkSystem Toolless Slide Rail
ThinkSystem SR550, 1xIntel Xeon Silver 4208 8C 2.1GHz 85W, 1x16GB 2Rx8, RAID 530-8i PCIe 12Gb Adapter, 1x750W, XCC Enterprise, ThinkSystem Toolless Slide Rail
Lenovo .Server System x3650 M4 Xeon E5 v2 Ten-Core 2.20 GHz Bus Speed 1866 MHz 25 MB Cache - Rack
HPE ProLiant DL345 Gen11 8LFF Configure-to-order Server
Lenovo System x3650 7979 - Server - Xeon DP 2,66 GHz - RAM:2 GB HDD:2 GB SAS SAS1 - DVD/CD-drive - 2 HE
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
Lenovo .Server System x3550 M5 1 Xeon E5 v4 Eight-Core 1.70 GHz Bus Speed 6.40 GT/s 20 MB
Lenovo System x3650 M3 2.66GHz X5650 675W Rack (2U) Server
SR570 Xeon Bronze 3104 (6C 1.7GHz 8.25MB Cache/85W) 16GB (1x16GB, 2Rx8 RDIMM), O/B, 530-8i, 1x750W, XCC Standard, Tooless Rails
HPE ProLiant DL560 Gen10 - 1,86 GHz - 5120 - 32 GB - DDR4-SDRAM - 1600 W - Rack (2U)
Lenovo SR630 - 2,1 GHz - 4110 - 128 GB - DDR4-SDRAM - 3600 GB - Rack (1U)
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.