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Compact slim desktop tower in matte black finish with front USB-C port and included keyboard and mouse

DELL

DELL Pro Slim QCS1250 desktop PC, Core i9-12900K, 32GB DDR5, 1TB NVMe, Windows 11 Pro

SKU CH-ZX4Z-TKSDX

A slim business desktop with a 16-core Intel Core i9-12900K, 32 GB DDR5 memory, 1 TB NVMe storage and Windows 11 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core i9 12th Gen
  • RAM capacity32 GB DDR5
  • SSD storage1 TB PCIe
  • GraphicsIntel UHD Graphics 770
  • Wi-Fi standardWi-Fi 6
  • 16-core Intel Core i9-12900K handles demanding workloads
  • 32GB DDR5 4800MHz memory speeds up multitasking
  • 1TB PCIe NVMe SSD provides fast storage access
  • Wi-Fi 6 and Bluetooth 5.3 enable reliable wireless connectivity
  • Dual DisplayPort 1.4a and HDMI 2.1 support two monitors

Business desktop for demanding workloads

The Dell Pro Slim QCS1250 is a compact business desktop built around an Intel Core i9-12900K processor with 16 cores. It ships with 32GB of DDR5 4800 memory and a 1TB PCIe NVMe SSD. Windows 11 Pro is pre-installed and the system includes a USB keyboard and mouse for immediate deployment.

Upgrading from older OptiPlex

The 12th-generation Core i9 delivers significantly higher multi-thread throughput than previous 8-core or 10-core business CPUs. The jump is worth it when workloads involve heavy multitasking, large dataset manipulation or virtualisation that saturate older platforms. Integrated Intel UHD Graphics 770 handles standard office display output without a discrete card.

32GB DDR5 and 1TB NVMe provide generous headroom

Dual-channel DDR5 at 4800MHz comfortably runs multiple virtual machines, large spreadsheets and memory-hungry browsers. The single NVMe slot and one 3.5-inch SATA bay allow storage expansion up to the 64GB memory ceiling. Buyers who need more storage bays or discrete graphics capability should consider a larger chassis.

How it compares

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

Price $1,209.99
Pricier than about 82% of the 14,711 comparable items (median $494.99).
RAM capacity 32 GB DDR5
Higher than about 70% of the 13,125 comparable items (median 16 GB).
SSD storage 1 TB PCIe
Higher than about 60% of the 11,342 comparable items (median 512 GB).

Specifications

Product
Product lineBusiness Desktop
Model namePro Slim
Product typeBusiness Desktops & Workstations
Recommended useBusiness
Processor
ProcessorIntel Core i9 12th Gen
CPU socketLGA 1700
Memory
RAM capacity32 GB DDR5
RAM type and speedDDR5 4800
Storage
SSD storage1 TB PCIe
Hard driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsIntel UHD Graphics 770
Audio & video
SoundSound card - Integrated
Audio chipIntegrated
Speaker setupInternal Speaker
Connectivity
Wi-Fi standardWi-Fi 6
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Ethernet controllerIntegrated
Wi-Fi802.11ax Wireless LAN
Bluetooth support5.3
Ports & slots
Front USB ports1x USB 3.2 TYPE C, 1x USB 3.2, 2x USB 2.0
Front audio jacks1
Video connectors1 HDMI 1 Display Port
Rear USB ports2 x USB 3.2, 2 x USB 2.0
Ethernet port1 port
Power
Power supply180 W
Size & build
Form factor180 W
Compatibility
Windows 11 supportReady
In the box
Included monitorNot included
Pointing deviceWired Mouse
Software
Operating systemWindows 11 Pro
More details
Cooling methodAir Cooling
Keyboard typeWired Keyboard

Questions about this item

What clearance does the 180W slim chassis need for the air cooling vents?

Leave at least 50 mm behind and above the rear exhaust so the internal fan can push hot air out without recirculation.

Which cable must be attached first when adding a 3.5" SATA drive in the internal bay?

Connect the SATA data cable to the motherboard before routing the power lead from the PSU; reversing the order often traps the connector behind the drive cage.

When should the two DDR5 4800 SO-DIMMs be replaced to reach the 64 GB limit?

Swap both modules for a matched 32 GB pair when memory pressure appears in Task Manager; the board has only two slots so mixing old and new sticks is not possible.

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