D-Link's DIS-300 Series Industrial SFP Optical Transceivers are MSA (Multiple Source Agreement) Compliant, hot-swappable SFP transceivers that are specifically designed for D-Link Industrial Ethernet switches. The transceivers offer customers a wide variety of connection distance for factory automation, smart and connected city applications. All the DIS-300 Series transceivers are standard-based and hot swappable. You can remove or replace the transceiver with the system powered. This allows transceivers to be added or swapped without downtime or interrupting the network. Contrast to commercial optical transceivers with operating temperature 0~70°C, these Industrial SFP Optical Transceivers have a wider operating temperature range of -40~85°C. This allows the transceivers to be deployed in harsher environmental conditions with extreme temperatures.