Since its launch in 2015, The SFX-L form factor has garnered popular recognition and support among enthusiasts With its larger 120mm fan able to achieve better balance of power and quietness in small form factor PCs than what was possible with standard SFX. And as a leader in power Supply miniaturization, Silverstone has continued its efforts in advancing the SFX-L forward to reach ever higher limit. The sx800-lti not only has unprecedented 800 watts of power output but also has the highest level of 80 Plus efficiency with a titanium rating. It includes all features available from top of the line Silverstone PSUs such as flexible flat cables, all Japanese capacitors and advanced semi-fanless capability. For those looking to build the most efficient small form factor systems possible with great quality and power, the sx800-lti is definitely the top choice.