SFP+ SR Module E10G41BTDA, Intel Ethernet Converged Network Adapter X520-DA1, 10 GbE Short Range Fiber Optic Transceiver This lead free optic module supports rates selectable 1., 25 Gb/s to 10., 3 Gb/s bit rates. 10Gtek Ethernet Converged Network Adapter X520-DA2 Single power supply and uncooled VCSEL laser Intel E10GSFPSR Compatible SFP transceiver supports up to 300m over OM3 MMF via an LC duplex connector. This transceiver is compliant with SFF-8431, IEEE 802.3-2012 10G-SR/SW and 1000BASE-SX. Digital diagnostics monitoring is available via a 2-wire serial interface, as specified in SFF-8472 Product Description The Intel Ethernet SFP+ SR (Short Range - Max link distance is 300 m) Optic is a SFP+ module designed for the Intel Ethernet Converged Network Adapters (X520 family: product codes:E10G42BTDA, E10G41BFSR, E10G42BFSR, E10G41BFLR). AddOn Intel E10GSFPSR Compatible SFP Transceiver - SFP transceiver module (equivalent to: Intel E10GSFPSR) - 10GbE - 10GBase-SR Duplex LC connector and built-in digital diagnostic functions