OptiPlex is a line of business-oriented desktop and all-in-one computers made for corporate enterprises, healthcare, the government, and education markets released in 1993 by Dell. The systems typically contain Intel CPUs, beginning with Celeron and Pentium and currently with the Core microarchitecture. Business-oriented components, such as Gigabit Ethernet, DisplayPort, Tool-less Chassis and software such as data protection utilities, along with management features such as Intel vPro often come standard with OptiPlex systems. OptiPlex configurations can be completed by the purchaser for components such as CPU, GPU, RAM, Storage and Wireless options, as well as Dell Pro support.

Small form factor is a term used for desktop computers and for some of its components, chassis and motherboard, to indicate that they are designed in accordance with one of several standardized computer form factors intended to minimize the volume and footprint of a desktop computer compared to the standard ATX form factor.