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

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.