4 Pack - Adtran 1442440G1 Compatible 10GBase-ER SFP+ Optical Transceiver Module (SMF, 1550nm, 40Km, LC, DOM)

4 Pack - Alcatel-Lucent SFP-10G-ER Compatible 10GBase-ER SFP+ Optical Transceiver Module (SMF, 1550nm, 40Km, LC, DOM)

4 Pack - Allied Telesis AT-SP10ER40 Compatible 10GBase-ER SFP+ Optical Transceiver Module (SMF, 1550nm, 40Km, LC, DOM)

4 Pack - Arista SFP-10G-ER Compatible 10GBase-ER SFP+ Optical Transceiver Module (SMF, 1550nm, 40Km, LC, DOM)

4 Pack - Avaya AA1403013-E6 Compatible 10GBase-ER SFP+ Optical Transceiver Module (SMF, 1550nm, 40Km, LC, DOM)

4 Pack - Brocade 10G-SFPP-ER Compatible 10GBase-ER SFP+ Optical Transceiver Module (SMF, 1550nm, 40Km, LC, DOM)

4 Pack - Cisco SFP-10G-ER Compatible 10GBase-ER SFP+ Optical Transceiver Module (SMF, 1550nm, 40Km, LC, DOM)