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

DELL

DELL Pro Slim QCS1250 SFF Desktop PC Core Ultra 7 265K 16GB 256GB

SKU CH-SDGN-65QMS

A compact business desktop with a 20-core Intel Core Ultra 7 265K processor, 16GB DDR5 memory and a 256GB NVMe SSD, plus Windows 11 Pro and included keyboard and mouse

  • Release Year2025
  • Form FactorSmall Form Factor
  • ColorBlack
  • ProcessorIntel Core Ultra 7 265K
  • Processor Main Features64 bit 20-Core Processor
  • Cache Per Processor30MB
  • 20-core Intel Core Ultra 7 processor reaches 5.5 GHz for demanding workloads
  • 16 GB DDR5 5600 MHz memory keeps multitasking responsive
  • 256 GB NVMe SSD provides fast boot and application load times
  • Small form factor measures just 95 mm wide for tight desk spaces
  • Windows 11 Pro pre-installed with keyboard and mouse included

Small-form-factor desktop for business and education

The Dell Pro Slim QCS1250 packs a 20-core Intel Core Ultra 7 265K processor with 30 MB cache and a 13 TOPS NPU into a 3.74-inch-wide chassis. Sixteen gigabytes of DDR5 5600 MHz memory and a 256 GB PCIe NVMe M.2 drive handle multitasking and fast boot times. Windows 11 Pro 64-bit is pre-installed for managed deployments.

Wired keyboard and mouse shift setup time

A full-size USB keyboard and a wired USB mouse are included so the system is ready for immediate desk deployment. Integrated Intel UHD Graphics 770 drives one HDMI 2.1 (TMDS) port and one DisplayPort 1.4a (HBR2) port for dual-monitor productivity without a discrete card. Gigabit Ethernet provides wired network connectivity.

Verify display inputs and expansion headroom

The compact 11.95-inch height and 11.54-inch depth limit internal upgrades, so confirm the case can accommodate any additional cards or drives you may need later. Front and rear ports total two USB 2.0, three USB 3.2 Gen 1 Type-A and one USB 3.2 Gen 1 Type-C connector plus a global headset jack. Monitor is not included; ensure your displays match the available HDMI and DisplayPort outputs.

Highlights

  • 20-core Intel Core Ultra 7 processor reaches 5.5 GHz for demanding workloads
  • 16 GB DDR5 5600 MHz memory keeps multitasking responsive
  • 256 GB NVMe SSD provides fast boot and application load times
  • Small form factor measures just 95 mm wide for tight desk spaces
  • Windows 11 Pro pre-installed with keyboard and mouse included

Specifications

BrandDELL
ModelQCS1250
Release Year2025
Form FactorSmall Form Factor
ColorBlack
ProcessorIntel Core Ultra 7 265K
Processor Main Features64 bit 20-Core Processor
Cache Per Processor30MB
Memory16GB
Storage256GB NVMe SSD
EthernetEthernet
MonitorMonitor not included
KeyboardKeyboard
MouseMouse
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeUltra 7
Installed QtyBusiness, Education
CPU NameIntel Core Ultra 7 265K
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
SSD256GB
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

What memory upgrades does the DDR5 5600 MHz RAM support?

The board uses DDR5 5600 MHz modules; capacity and slot count are determined by the LGA 1851 platform and Dell's qualified-memory list.

Which component hits its limit first during sustained all-core workloads?

The 20-core Core Ultra 7 265K will reach its 5.5 GHz turbo ceiling or the SFF cooler's thermal capacity before the 256 GB NVMe SSD or 16 GB RAM become bottlenecks.

How loud and hot does the 3.74 in. wide chassis get after hours of operation?

The small-form-factor case relies on a single internal fan to cool the 20-core CPU and integrated UHD 770 graphics, so expect noticeable fan ramp and warm exhaust during long sessions.

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