Intel NUC 11 Extreme Barebone Mini Pc with 11th Generation Intel Core i9-11900KB Processor (No Pre-Installed Storage & Memory) Internal Hard Disk 500GB you can enhance efficiency by

you can enhance efficiency by adding a second monitor via the daisy chain feature

Dimensions(without Bracket): 240*115

which comes with 3 Pre-Installed 120mm ARGB Fans

The 4000D AIRFLOW has excellent potential for expansion without being cumbersome

Dell Vostro 1510

Intel NUC 11 Extreme Barebone Mini Pc with 11th Generation Intel Core i9-11900KB Processor (No Pre-Installed Storage & Memory) Internal Hard Disk 500GB you can enhance efficiency byPowerful Performance: Equipped with an 11th Gen Intel Core i9 11900KB processor (8 cores, 16 threads, up to 5. 0 GHz) for high end computing tasks and gaming. Modular Design: Features Intels innovative Compute Element, allowing easy upgrades of CPU, RAM (up to 64GB DDR4 3200), and storage (multiple M. 2 slots). Graphics Card Support: Includes a PCIe x16 slot that supports full length dual slot GPUs, making it suitable for gaming, 3D rendering, and