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Grey tower desktop PC with front USB ports and power button

DELL

DELL Pro Tower Plus QBT 1250 Intel Core Ultra 7 265 64GB DDR5 1TB SSD desktop PC

SKU CH-Z8ZJ-01ZZJ

Business tower desktop with a 20-core Intel Core Ultra 7 265 processor, 64GB DDR5 memory and a 1TB SSD for fast multi-tasking

  • TypeBusiness Desktops & Workstations
  • Form FactorTower
  • UsageBusiness
  • ProcessorIntel Core Ultra 7 265 20-Core Processor at 2.40GHz up to 5.
  • Processor Main Features64 bit 20-Core Processor
  • Cache Per Processor30MB Intel Smart Cache
  • 20-core Intel Core Ultra 7 265 up to 5.30 GHz powers heavy multitasking
  • 64 GB DDR5 memory accelerates data-intensive workflows
  • 1 TB SSD delivers fast boot and application load
  • Intel HD Graphics drives multiple displays for expanded workspace
  • 260 W supply with versatile USB 2.0, 3.2 and Type-C connectivity

Business tower for multitasking professionals

The Dell Pro Tower Plus QBT 1250 is built for office environments that demand responsive multitasking and reliable daily operation. An Intel Core Ultra 7 265 processor with 20 cores runs at 2.40GHz base and up to 5.30GHz boost, supported by 30MB Intel Smart Cache. 64GB of DDR5 memory and a 1TB SSD provide fast boot times and smooth application switching. Windows 11 Pro is pre-installed for business-grade security and management.

260W power supply with advanced cooling

The system draws power from a 260W supply while Dell's advanced cooling system manages thermals inside the Pro chassis. Intel HD Graphics handles multi-display output without a discrete card, keeping heat and noise low for typical productivity workloads. The tower form factor allows airflow to move through the chassis efficiently during extended business hours.

Versatile connectivity in a durable chassis

The Pro chassis delivers long-lasting build quality with a practical port layout. Front and rear panels combine for 4 x USB 2.0, 4 x USB 3.2 and 2 x USB 3.2 Type-C ports alongside 1 x RJ-45 Gigabit Ethernet and a headset jack. Multi-display support via DisplayPort connections suits trading desks or multi-monitor offices. No optical drive is included, so external media requires a separate USB device.

Highlights

  • 20-core Intel Core Ultra 7 265 up to 5.30 GHz powers heavy multitasking
  • 64 GB DDR5 memory accelerates data-intensive workflows
  • 1 TB SSD delivers fast boot and application load
  • Intel HD Graphics drives multiple displays for expanded workspace
  • 260 W supply with versatile USB 2.0, 3.2 and Type-C connectivity

Specifications

BrandDELL
SeriesDell Pro
ModelQBT1250
TypeBusiness Desktops & Workstations
Form FactorTower
UsageBusiness
ProcessorIntel Core Ultra 7 265 20-Core Processor at 2.40GHz up to 5.30GHz
Processor Main Features64 bit 20-Core Processor
Cache Per Processor30MB Intel Smart Cache
Memory64GB DDR5
Storage1TB SSD
Optical DriveNo
Optical Drive 2No
GraphicsIntel HD Graphics
EthernetGigabit Ethernet
Power Supply260W
MonitorMonitor not included
Operating SystemWindows 11 Pro
CPU TypeIntel Core Ultra 7 (Series 2)
L3 Cache Per CPU30MB
CPU Main Features64 bit 20-Core Processor
GPU/VGA TypeIntel HD Graphics
Graphics CardIntel HD Graphics
Graphics InterfaceIntegrated
Memory Capacity64GB DDR5
Memory SpeedDDR5
Memory Spec64GB DDR5
SSD1 TB
HDDNo
Storage Spec1TB SSD
Optical Drive TypeNo
Screen SizeNo Screen
Display FeatureSupports Multiple Displays
LAN Speed10/100/1000Mbps
WLANNo
Front USB2 x USB 2.0,1 x USB 3.2, 1 x USB Type-C 3.2
Front Audio Ports1 x Headphone Jack
Card ReaderNo
Video Ports3 x DisplayPort
Rear USB3 x USB 3.2, 2 x USB 2.0, 1 x USB Type-C
RJ451 port
Keyboard TypeDell Keyboard
Mouse TypeDell Mouse
Dimensions (H x W x D)18 x 16 x 10
Weight15
Package TypeDell Brown Box
Package ContentsSmall Form Factor PC, Power cord

Questions about this item

How do I install additional DDR5 memory in the Dell Pro Tower Plus QBT 1250, and which step do people often miss?

Open the chassis, align the DDR5 module notch with the slot key, press firmly until the retention clips click, then verify the new total in BIOS — many forget to reseat the clips fully.

What maintenance or replacement will the 260 W power supply need later?

The 260 W PSU has no user-serviceable parts; plan to replace the entire unit if voltages drift or fan noise increases after several years of continuous operation.

Which limit appears first during sustained heavy workloads on the Core Ultra 7 265?

The 260 W power supply caps total system draw, so CPU turbo at 5.30 GHz will throttle before the 30 MB cache or 64 GB DDR5 become bottlenecks.

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