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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

  • Release Year2025
  • Form FactorSmall Form Factor
  • ColorBlack
  • ProcessorIntel Core Ultra 9 285K
  • Processor Main Features64 bit 24-Core Processor
  • Cache Per Processor36MB
  • 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.

Highlights

  • 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

Specifications

BrandDELL
ModelQCS1250
Release Year2025
Form FactorSmall Form Factor
ColorBlack
ProcessorIntel Core Ultra 9 285K
Processor Main Features64 bit 24-Core Processor
Cache Per Processor36MB
Memory16GB
Storage4TB NVMe SSD
EthernetEthernet
MonitorMonitor not included
KeyboardKeyboard
MouseMouse
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeUltra 9
Installed QtyBusiness, Education
CPU NameIntel Core Ultra 9 285K
CPU Socket TypeLGA 1851
GPU/VGA TypeIntel UHD Graphics 770
Graphics CardIntel Graphics
Graphics InterfaceIntegrated
Virtual Reality ReadyNo
Memory Capacity16GB
Memory SpeedDDR5 5600
Maximum Memory Supported128GB
SSD4TB
TouchscreenNo
BluetoothBluetooth
Front USB4
Video Ports1× HDMI 2.1 (TMDS), 1× DisplayPort 1.4a (HBR3)
Rear USB4
RJ451
Keyboard TypeWired Keyboard
Mouse TypeWired Mouse
Package TypeRetail

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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