3Com 3CXENPAK94 Compatible 10GBASE-SR XENPAK Optical Transceiver Module (MMF, 850nm, 300m, Duplex SC, DOM)

3Com 3CXENPAK92 Compatible 10GBASE-LR XENPAK Optical Transceiver Module (SMF, 1310nm, 10Km, Duplex SC, DOM)

3Com 3CXENPAK96 Compatible 10GBASE-ER XENPAK Optical Transceiver Module (SMF, 1550nm, 40km, Duplex SC, DOM)