Ciena QSFP-SR4 Compatible 40GBASE-SR4 QSFP+ Transceiver (MMF, 850nm, 150m, MTP/MPO, DOM).
The QSFP+ transceiver is probably the most widely-used and most popular 40G transceiver for short distance transmission, mostly link lengths of 100m and 150m on OM3 and OM4 multimode fibers. It is an MPO-interfaced parallel fiber optic transceiver with a 4x10G transmission pattern. The 40GBase-SR4 can achieve simultaneous 40G signal sending and receiving with the help of four 10G SFP+ lanes in one module. You can usually see this type of transceiver being used in data centers to interconnect two switches with 12 lane ribbon cables.
Specifications
| 
   Form
  Factor  | 
  
   QSFP+  | 
  
   Max
  Data Rate  | 
  
   41.25Gbps
  (4x 10.3125Gbps)  | 
 
| 
   Wavelength  | 
  
   850nm
    | 
  
   Max
  Cable Distance   | 
  
   150m@OM4/100m@OM3
    | 
 
| 
   Connector  | 
  
   MTP/MPO-12
  Male  | 
  
   Media  | 
  
   MMF  | 
 
| 
   Transmitter
  Type  | 
  
   VCSEL  | 
  
   Receiver
  Type  | 
  
   PIN  | 
 
| 
   TX
  Power  | 
  
   -7.1~1.9dBm  | 
  
   Receiver
  Sensitivity  | 
  
   <-10.3dBm  | 
 
| 
   Powerbudget  | 
  
   3.5dB  | 
  
   Receiver
  Overload  | 
  
   2.4dBm  | 
 
| 
   Power
  Consumption  | 
  
   <1.5W  | 
  
   Extinction
  Ratio  | 
  
   >3dB  | 
 
| 
   Host
  FEC   | 
  
   Supported  | 
  
   Bit
  Error Ratio (BER)  | 
  
   1E-12  | 
 
| 
   Commercial
  Temperature Range  | 
  
   0 to
  70°C (32 to 158°F)  | 
  
   Protocols  | 
  
   IEEE
  802.3ba, QSFP+ MSA, SFF-8436, SFF-8636  | 
 
