We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact black Mini PC, 7 by 7.25 by 1.5 inches, 3.1 lb

Lenovo

Lenovo ThinkStation Mini i9-14900 T400 16GB 2TB Win 11 Home

SKU CH-K813-0HPK0

Mini desktop with a 24-core i9-14900, 16 GB DDR5, 2 TB PCIe SSD and NVIDIA T400 graphics in a 7 × 7.25 × 1.5 in chassis

  • Screen sizeNo Screen
  • RAM capacity16 GB DDR5
  • SSD storage2 TB
  • GraphicsNVIDIA T400
  • Operating systemWindows 11 Home
  • Form factorMini PC
  • 24 cores and 32 threads handle heavy workloads with the i9-14900 up to 5.8 GHz
  • NVIDIA T400 4 GB GDDR6 graphics drive professional visual tasks
  • 16 GB DDR5 memory and 2 TB PCIe NVMe SSD give fast data access
  • WiFi 6 and Bluetooth 5.3 plus RJ-45 keep connections stable
  • Compact 7 × 7.25 × 1.5 in mini PC fits tight spaces

Compact Workstation Build

The Lenovo ThinkStation Mini pairs a 14th Gen i9-14900 processor with an NVIDIA T400 4GB GDDR6 graphics card. It delivers 24 cores and 32 threads for multi-threaded applications. The system includes 16GB DDR5 memory and a 2TB PCIe NVMe SSD. It targets professionals who need high compute density in a 7 IN x 7.25 IN x 1.5 IN chassis.

Thermals and Power Profile

A 300W power supply feeds the CPU, discrete GPU, WiFi 6 and Bluetooth 5.3 radios. The small 3.1lb enclosure relies on integrated airflow paths rather than large coolers. In typical office workloads the fan curve stays low, keeping acoustic output modest. Power draw scales with the 2.00GHz base clock and 5.8GHz boost behaviour.

Sustained Load Behaviour

Under continuous multi-core load the 36MB cache helps maintain throughput across 8 performance cores. The T400 GPU handles parallel compute tasks without thermal throttling in the mini form factor. DDR5 bandwidth supports sustained memory-intensive workflows. The fixed 300W budget caps peak performance during extended rendering or simulation runs.

How it compares

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

Price $1,430.99
Pricier than about 87% of the 14,711 comparable items (median $494.99).
RAM capacity 16 GB DDR5
Typical for this category: the median of 13,125 items is 16 GB.
SSD storage 2 TB
Higher than about 90% 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 capacity16 GB DDR5
Storage
SSD storage2 TB
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

How do I install the NVIDIA T400 graphics card in the ThinkStation Mini, and which power connector is commonly missed?

The T400 draws power from the PCIe x16 slot itself; no extra power cable is needed. The step people miss is seating the card fully until the retention clip clicks, otherwise the 300 W PSU will not detect it.

What maintenance will the 16 GB DDR5 SO-DIMM and 2 TB PCIe SSD require over time?

DDR5 SO-DIMM and NVMe SSD have no moving parts and need no scheduled maintenance. Keep the Mini PC vents clear of dust so the 300 W PSU fan can cool the i9-14900 under load.

Which limit appears first when the i9-14900 runs at 5.8 GHz on all 24 cores inside the 1.5 in high chassis?

The 300 W power supply and compact thermal envelope throttle the CPU before the T400 4 GB GDDR6 or 16 GB DDR5 memory become bottlenecks.

More in Tower & Compact Desktop PCs

Similar items