The SFP28 transceivers are high-performance, cost-effective modules supporting data rate of 25.78Gbps over multimode fiber. 
The transceiver consists of three sections: a VCSEL laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements. 
  
The transceivers are compatible with SFP Multi-Source Agreement and SFF-8472 digital diagnostics functions