D-Link | Multi-mode Transceiver | DIS-S301SX | Duplex LC Connector | Wavelength 850 nm | Maximum transfer distance 550 m | All the 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