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Tower server, matte black chassis, front drive bays visible

Lenovo

Lenovo ThinkSystem ST550 Tower Server 2×Xeon Silver 4210 64GB DDR4 1TB SSD 12TB HDD

SKU CH-SS95-T69E3

Tower server with dual Xeon Silver 4210 CPUs, 64GB DDR4, 1TB SSD and 12TB HDD for small business workloads

  • Installed RAM64 GB
  • Installed SSD1 TB
  • Processor speed2.2 GHz
  • Type of memoryDDR4
  • Rack height1U
  • Installed CPUs2
  • Dual Xeon Silver 4210 CPUs deliver 20 cores at up to 3.2 GHz turbo
  • 64GB DDR4 2666MHz memory handles demanding workloads with speed and reliability
  • 1TB SATA SSD plus 12TB SATA HDD combine ultra-fast boot with high-capacity storage
  • Software RAID 0, 1, 10, 5, 50 protects data across eight 3.5-inch drive bays
  • Mini-tower form factor fits small offices while offering two 1GbE ports and dedicated management

Entry-level dual-socket tower server

The Lenovo ThinkSystem ST550 is a new micro tower server built for small-business and home-office roles. It ships with two Intel Xeon Silver 4210 processors, each offering 10 cores at 2.20 GHz with turbo up to 3.20 GHz. Sixty-four gigabytes of DDR4 unbuffered memory at 2666 MHz provide headroom for virtualization and database workloads. The chassis measures 31 x 24 x 18 cm and weighs 16 kg.

Mixed SSD and HDD storage with hardware RAID

The system includes two 500 GB SATA SSDs totalling 1 TB for fast boot and application access, plus six 2 TB SATA hard drives providing 12 TB of bulk capacity. An onboard controller supports RAID 0, 1, 10, 5 and 50 so the eight 3.5-inch drive bays can be configured for speed, redundancy or a balance of both. Matrox G200 graphics with 16 MB memory handles basic video output for local management.

Single power supply and 1 GbE networking limits

A single power supply means no redundancy if the unit fails, so mission-critical deployments should plan for external UPS protection. Network connectivity is limited to two standard 1 GbE ports plus a dedicated 1 GbE management port, which may restrict throughput for heavy file-sharing or backup traffic. Buyers needing 10 GbE, redundant power or GPU compute acceleration will need a different platform.

How it compares

Measured against everything we stock in Rack & Tower Servers, at today’s prices. Recalculated every night.

Price $3,677.99
Pricier than about 71% of the 17,641 comparable items (median $1,910.99).
Installed RAM 64 GB
Lower than about 70% of the 15,103 comparable items (median 128 GB).
Installed SSD 1 TB
Typical for this category: the median of 144 items is 1 TB.

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Specifications

Product
Brand nameLenovo
Product lineST550
Part numberLenovo ThinkSystem ST550.,.
Product typeMicro Tower
Processor
Processor speed2.2 GHz
Installed CPUs2
Memory
Installed RAM64 GB
Type of memoryDDR4
Storage
Installed SSD1 TB
Drive interfaceSATA
Graphics
Graphics chipMatrox G200
Size & build
Rack height1U
Product dimensions31 × 24 × 18

Questions about this item

What DDR4 memory modules will I need when the 64GB installed capacity is no longer enough?

The system uses DDR4 PC4-21300 2666MHz unbuffered DIMMs; add matching modules to the open slots to expand beyond the current 64GB.

Which component will hit its ceiling first when the dual Xeon Silver 4210 CPUs run at 3.20GHz turbo for long periods?

The single power supply and the 2×1GbE network ports are the first bottlenecks under sustained heavy compute and data throughput.

How loud and hot does the tower get when it runs 24/7 with all eight 3.5-inch drive bays populated?

A single power supply and eight spinning drives generate noticeable heat and fan noise in a 31×24×18 cm mini-tower; ensure good airflow around the chassis.

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