X2 fiber optic transceiver module is used in datacom optical links only (not telecom), and they are smaller than old generation XENPAK transceiver. Its electrical interface to the host board is also standardized and is called XAUI (4 x 3.125 Gb/s). 

Sopto is a professional manufacturer and supplier for good quality and the cheapest X2 transceivers Products. Sopto manufactures 300m, 10km, 20km, 40km, 80km X2 optical modules including compatible Cisco X2, HP X2, DWDM X2, CWDM X 2, CWDM XENPAK. All our fiber transceiver modules support Digital Optical Monitoring (DOM) function.

• 
  SPT-2DXXTG-80D 10Gb/s DWDM X2 ZR Transponder

  10G 1260~1600nm 80km DDM DWDM X2 Fiber Transceiver Module. Data sheet, PDF Download, Low Price, High Quality from Sopto,China, the fiber optical products manufacturer and supplier.

  Contact Supplier