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Compact black small-form-factor desktop tower with matte finish

Lenovo

Lenovo ThinkCentre neo 55s SFF Desktop PC AMD Ryzen 7 250 16GB DDR5 512GB SSD Wi-Fi 5 Windows 11 Pro Black

SKU CH-MSDD-DS3Q8

A compact business desktop with an 8-core Ryzen 7 250 processor, 16 GB DDR5 memory and a 512 GB SSD running Windows 11 Pro

  • TypeBusiness Desktops & Workstations
  • UsageWork / Business
  • ColorBlack
  • Cooling SystemAir Cooling
  • Operating SystemWindows 11 Pro
  • Windows 11Ready

Sizename 16GB RAM · 512GB SSD

  • Powerful AI processing with AMD Ryzen 7 250 8-core CPU reaching 5.10 GHz turbo
  • Ultra-fast DDR5 4800 memory at 16 GB for responsive multitasking
  • Quick 512 GB PCIe M.2 SSD storage for rapid data access
  • Business-ready Windows 11 Pro with versatile USB 3.0, USB-C, HDMI and DP ports
  • Compact SFF chassis measuring 10.83 x 3.5 x 13.24 inches for space-saving deployment

Purpose-built SFF desktop

The Lenovo ThinkCentre neo 55s is a small form factor business desktop powered by an AMD Ryzen 7 250 processor with eight cores and a 5.10GHz turbo frequency. It ships with 16GB of DDR5 4800 memory and a 512GB PCIe M.2 SSD under Windows 11 Pro. The compact chassis uses air cooling and includes wired peripherals.

Suited for office multitasking, not GPU workloads

This system fits professional environments that need responsive CPU performance, fast DDR5 memory and dual-display support via HDMI and DisplayPort. It lacks discrete graphics, Bluetooth and a media card reader, so creative professionals needing GPU acceleration or wireless peripherals should consider other configurations.

DDR5 SODIMM with two open slots

The board provides two DDR5 SODIMM slots, both populated at 16GB, and supports up to 64GB total capacity. Buyers planning memory expansion must use DDR5 modules; earlier DDR generations are physically and electrically incompatible.

Highlights

  • Powerful AI processing with AMD Ryzen 7 250 8-core CPU reaching 5.10 GHz turbo
  • Ultra-fast DDR5 4800 memory at 16 GB for responsive multitasking
  • Quick 512 GB PCIe M.2 SSD storage for rapid data access
  • Business-ready Windows 11 Pro with versatile USB 3.0, USB-C, HDMI and DP ports
  • Compact SFF chassis measuring 10.83 x 3.5 x 13.24 inches for space-saving deployment

Specifications

BrandLenovo
SeriesThinkCentre
Modelneo 55s
TypeBusiness Desktops & Workstations
UsageWork / Business
ColorBlack
Cooling SystemAir Cooling
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeAMD Ryzen 7 200 Series
CPU NameAMD Ryzen 7 250
CPU Base Frequency3.30GHz
Turbo Frequency5.10GHz
L3 Cache Per CPU16 MB
CPU Main Features64 bit 8-Core Processor
GPU/VGA TypeAMD Radeon Graphics
Memory Capacity16GB DDR5
Memory SpeedDDR5 4800
Memory Slot (Total)2
Memory Slot (Available)2
Memory Slots (Available/Total)2
Maximum Memory Supported128 GB
SSD512GB
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
WLAN802.11ac Wireless LAN
WiFi GenerationWi-Fi 5
Front Audio Ports2
Video Ports1 Display Port, 1 HDMI
RJ451 port
Keyboard TypeWired Keyboard
Mouse TypeWired Mouse
Dimensions (H x W x D)10.83" x 3.5" x 13.24"
Weight9.55 lbs
Package TypeRetail

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 are the exact dimensions of the neo 55s SFF chassis so I can confirm it fits my desk space?

The chassis measures 10.83 inches wide, 3.5 inches high and 13.24 inches deep, weighing 9.55 lbs, so verify your shelf clearance against those figures before ordering.

How do I add more DDR5 memory and which slot should I populate first?

Power off, remove the side panel, insert the SODIMM module into the lower slot at a 30-degree angle until it clicks, then secure the retention clips; the system has two DDR5 slots and both are free.

When the 512 GB M.2 SSD fills up, what replacement drive format does the board accept?

The motherboard supports a single PCIe M.2 SSD up to 2 TB; swap the existing 512 GB module for a larger M.2 2280 drive and reinstall Windows 11 Pro to restore full capacity.

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