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Small black mini PC cube with compact square footprint

Lenovo

Lenovo ThinkStation Mini PC i9-14900 T400 4GB 8GB DDR5 256GB NVMe Win 11 Home

SKU CH-919K-4FQT1

Mini desktop with 14th Gen Intel Core i9-14900, NVIDIA T400 4GB GDDR6 graphics, 8GB DDR5 memory, 256GB NVMe SSD, WiFi 6 and Bluetooth 5.3

  • Screen sizeNo Screen
  • RAM capacity8 GB DDR5
  • SSD storage256 GB
  • GraphicsNVIDIA T400
  • Operating systemWindows 11 Home
  • Form factorMini PC
  • 24-core i9-14900 up to 5.8 GHz for heavy multi-thread workloads
  • NVIDIA T400 4 GB GDDR6 for professional visualisation tasks
  • 8 GB DDR5 memory for responsive application switching
  • 256 GB NVMe solid-state drive for fast boot and load times
  • WiFi 6 and Bluetooth 5.3 plus RJ-45 for flexible connectivity

Mini workstation for professional workloads

The Lenovo ThinkStation Mini PC combines a 14th Gen Intel i9-14900 processor with 24 cores and 32 threads with an NVIDIA T400 4GB GDDR6 graphics card. It targets engineers, designers and analysts who need multi-threaded CPU performance and certified drivers in a 7 in by 7.25 in footprint. The 36 MB cache and 5.8 GHz maximum turbo frequency support demanding calculations and visualisation tasks.

Build integration and expandability

The system arrives with 8 GB of DDR5 SO-DIMM memory and a 256 GB PCIe NVMe SSD installed, leaving the second SO-DIMM slot and additional M.2 bays available for future upgrades. A 300 W internal power supply drives the platform without an external brick. Video outputs include HDMI, one full-size DisplayPort and three mini DisplayPort connectors for up to four displays. WiFi 6, Bluetooth 5.3 and RJ-45 Ethernet handle wired and wireless networking.

Thermals, acoustics and power

The compact 1.5 in height chassis uses a blower-style cooler to exhaust heat through the rear vent, keeping the 14900 and T400 within thermal limits during sustained loads. Fan noise remains low at idle and rises to a moderate level under full CPU and GPU utilisation. The 300 W power supply provides sufficient headroom for the configured components while maintaining efficient operation in typical office environments.

How it compares

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

Price $866.99
Pricier than about 72% of the 14,711 comparable items (median $494.99).
RAM capacity 8 GB DDR5
Lower than about 80% of the 13,125 comparable items (median 16 GB).
SSD storage 256 GB
Lower than about 80% of the 11,342 comparable items (median 512 GB).

Specifications

Product
Brand nameLenovo
Model nameThinkStation
Product typeBusiness & Home Office
Processor
L3 cache per CPU36 MB Cache
Memory
RAM capacity8 GB DDR5
Storage
SSD storage256 GB
Hard driveNo
Optical driveNo Optical Drive
Display
Screen sizeNo Screen
Graphics
GraphicsNVIDIA T400
GPU interfacePCI Express x16
Connectivity
Wi-Fi802.11ax
Bluetooth support5.3
Ports & slots
Memory card readerNo
Ethernet portYes
Power
Power supply300 W
Size & build
Form factorMini PC
In the box
Included monitorNot included
Software
Operating systemWindows 11 Home
More details
Keyboard typeUSB Keyboard

Questions about this item

Does the 300 W power supply limit the i9-14900 when all 24 cores run at 5.8 GHz for hours?

The 300 W PSU is sized for the base 2.00 GHz configuration; sustained 5.8 GHz turbo across 24 cores can exceed that budget, so the CPU will throttle to stay within the power envelope.

How loud and hot does the Mini PC get when the NVIDIA T400 and i9-14900 run flat-out all day?

The compact 7 x 7.25 x 1.5 in chassis relies on a small internal fan; expect noticeable fan noise and warm exhaust temperatures under continuous combined CPU and GPU load.

The box shows only a USB keyboard and mouse — do I need to supply my own monitor and cables?

Yes, no display is included; you must provide a monitor with HDMI, DisplayPort or mini-DisplayPort input and the matching cable.

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