TP-Link TL-SM321B 1000Base-BX WDM Bi-Directional SFP Module (TX: 1310nm/RX: 1550nm)

2Pack 1000BASE-LX/LH Gigabit SFP Module, 1310nm, 10km, DDM, Single-Mode LC Mini-GBIC Transceiver for Cisco GLC-LH-SMD/GLC-LX-SM-RGD, Ubiquiti UF-SM-1G, Netgear, Mikrotik, Supermicro

CERRXIAN 1.25G Single Mode BIDI SFP LC Module Fiber Transceiver,SFP-WDM-SM,3KM LC Tx1550nm/Rx1310nm-1 Pair

[2 Pack] 1G SFP LX LC Singlemode Module 10km, 1000Base-LX Mini-Gbic Transceiver Compatible for Cisco GLC-LH-SMD, Meraki, Ubiquiti UniFi UF-SM-1G, Mikrotik, Netgear, D-Link, TP-Link, Zyxel and more

10Gtek [2 Pack] 10Gb SFP+ SR Multimode Module 300-meter, 10GBase-SR LC Transceiver Compatible for Cisco SFP-10G-SR, Meraki, Mikrotik S+85DLC03D, Ubiquiti, Netgear, Zyxel, Qnap,Synology,D-Link and more

QSFPTEK 1.25G Gigabit SFP Module, 1000BASE-LX/LH sfp to Ethernet, 1310nm 10km DDM Single-Mode LC Mini-GBIC Transceiver for Juniper EX-SFP-1GE-LX/QFX-SFP-1GE-LX

Elfcam® Pack of 2 SFP 1.25G Module, Single-Mode SC Fibre Optic Cable Connector, Wavelength TX1310nm / RX 1550nm and TX1550nm / TR1310nm DDM 10KM

[2 Pack] Gigabit Ethernet Media Converter with a 1Gb SFP SX LC Multimode Module, 10/100/1000M RJ45 to 1000Base-SX, up to 550m, with a British Power Supply

1.25G SFP 1310nm Single-Mode Module SMF 1000Base-LX, Up to 20 km Transceiver for Cisco GLC-LH-SMD,Ubiquiti UniFi,Meraki MA-SFP-1GB-LX10,Intel,Fortinet,Mikrotik,D-Link,Netgear,TP-Link TL-SM311LS

6COMGIGA 10 Gigabit SFP+ LC Single-Mode Transceiver Module, 10GBase-LR Module for Cisco SFP-10G-LR, Meraki MA-SFP-10GB-LR, Ubiquiti UF-SM-10G, Mikrotik, Supermicro, Netgear (DDM, 1310nm, 10km)