Black Box MultiPower Miniature Media Converter, SFP-to-SFP Mode Converter - 1000Base-X - 2 x Expansion Slots - SFP - 2 x SFP Slots - Desktop, Rail-mountable, Wall Mountable - TAA Compliant

Compact size; measures just 0.8inH x 1.8inW x 3.4inD. Powered by a universal AC power supply or the optional rackmountable PowerTray. Auto MDI/MDI-X means you never need to worry about what kind of cable to use. Bring fiber to the desktop more conveniently and at a lower cost than installing fiber NICs