The UNO (C-UNO2271-W10EDG-1) is a Smart Factory Edge Gateway that is pocket-size at less than 4 inches wide, making it an ideal host for your application software. The UNO is fan-less and highly ruggedized for business-critical and mission-critical applications. All models come with 32G eMMC storage and are available with Windows 10 ENT LTSB, Linux available and 128G mSATA SSD. A main advantage of Windows 10 ENT LTSB (the "Long-Term Servicing Branch") is its ability to provide long-term stability in applications by limiting Windows updates.