The Arista Networks SFP-25G-BD compatible SFP28 transceiver provides up to 20 km of 25GBase-BX throughput over single-mode fiber (SMF) using 1330nm-TX/1270nm-RX wavelengths via LC simplex connectors. This bi-directional unit must be used with another transceiver or network equipment of complementary wavelengths. It provides 25GBASE Ethernet connectivity options for 25G Ethernet, telecom and data centers. It is fully compliant with SFF-8472, SFF-8402, SFF-8432, SFF-8431, MSA and eCPRI standards.