D-Link | Multi-mode Transceiver | DEM-QX01Q-SR4 | QSFP+ Connector | Wavelength 850 nm | Maximum transfer distance 150 m | The transceivers all support 40G Ethernet, which results in very fast data transmissions of up to 40 Gbit/s; All 40G QSFP+ modules feature DDM real time monitoring of critical parameters, including transmitted and received power, temperature, and voltage