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Black small-form-factor desktop tower with wired keyboard and mouse

DELL

DELL QCS1250 SFF desktop PC Ultra 9 285K 24-core 16GB 4TB NVMe

SKU CH-X8NM-MPH3G

Small-form-factor desktop with a 24-core Intel Core Ultra 9 285K processor, 16GB DDR5 memory, 4TB NVMe storage and Windows 11 Pro

  • ProcessorUltra 9
  • Memory size16 GB
  • Storage drive4 TB NVMe SSD
  • GraphicsIntel UHD Graphics 770
  • CPUIntel Core Ultra 9 285K
  • RAM capacity16 GB
  • 24-core Ultra 9 285K reaches 5.7 GHz for heavy workloads
  • 13 TOPS NPU accelerates AI tasks locally
  • 16 GB DDR5 5600 MHz memory supports multitasking
  • 4 TB NVMe SSD stores large datasets
  • Slim 95 mm wide chassis fits tight spaces

Business-ready SFF desktop

The Dell QCS1250 packs an Intel Core Ultra 9 285K processor with 24 cores and a 13 TOPS NPU into a small form factor chassis. Sixteen gigabytes of DDR5 5600 MHz memory and a 4TB NVMe SSD provide responsive multitasking and ample local storage. Windows 11 Pro ships pre-installed alongside a wired keyboard and mouse for immediate deployment.

Thermals and acoustics

The compact 3.74-inch-wide case houses the 3.70 GHz base processor with turbo up to 5.7 GHz using integrated Intel UHD Graphics 770. No discrete graphics card means lower sustained power draw and quieter operation under typical office workloads. Front and rear USB ports include one Type-C and four Type-A connections at 5 Gbps plus four USB 2.0 ports for peripherals.

Upgrade path and fit

This system replaces ageing tower workstations that lack modern AI acceleration and fast NVMe storage. The 36 MB smart cache and DDR5 bandwidth suit data-analysis and productivity tasks that previously required larger chassis. Buyers who need discrete GPU performance or multiple internal drive bays should consider a larger form factor.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $1,372.99
Pricier than about 85% of the 14,711 comparable items (median $494.99).
Memory size 16 GB
Typical for this category: the median of 5,840 items is 16 GB.
RAM capacity 16 GB
Typical for this category: the median of 13,125 items is 16 GB.

Specifications

Product
Brand nameDELL
Model nameQCS1250
Year of release2025
Product colorBlack
Processor
ProcessorUltra 9
CPUIntel Core Ultra 9 285K
CPU modelIntel Core Ultra 9 285K
CPU socketLGA 1851
Processor cache36 MB
Memory
Memory size16 GB
RAM capacity16 GB
RAM type and speedDDR5 5600
Max supported RAM128 GB
Storage
Storage drive4 TB NVMe SSD
SSD storage4 TB
Display
Touch inputNo
Graphics
GraphicsIntel UHD Graphics 770
GPU modelIntel Graphics
GPU interfaceIntegrated
VR readyNo
Connectivity
Wired networkEthernet
Bluetooth supportBluetooth
Ports & slots
Front USB ports4
Video connectors1× HDMI 2.1 (TMDS), 1× DisplayPort 1.4a (HBR3)
Rear USB ports4
Ethernet port1
Size & build
Form factorSmall Form Factor
Compatibility
Windows 11 supportReady
In the box
Included monitorNot included
Bundled mouseMouse
Pointing deviceWired Mouse
Software
Operating systemWindows 11 Pro
More details
KeyboardKeyboard
Keyboard typeWired Keyboard

Questions about this item

How do I add more memory to the QCS1250 and what slot mistake should I avoid?

Open the SFF chassis, locate the DDR5 5600 MHz SODIMM slots, and insert the new module at the correct angle until it clicks; the common error is seating it in the M.2 NVMe slot instead.

Which component in this desktop will need replacement first under heavy daily use?

The 16GB DDR5 5600 MHz memory will fill up before the 4TB NVMe SSD or the 24-core CPU reach their limits, so a capacity upgrade is the typical first maintenance step.

What performance limit appears first when the Ultra 9 285K runs sustained workloads in this 3.74-inch-wide chassis?

Thermal headroom in the small form factor enclosure becomes the limiting factor before the 5.7 GHz turbo or the 13 TOPS NPU can be fully sustained.

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