GLC-LH-SMD=, Cisco 1000BASE-LX/LH SFP transceiver module for MMF and SMF, 1300-nm wavelength, extended operating temperature range and DOM support, dual LC/PC connector | EET
Cisco 1000BASE LH SFP - Tempest Telecom Solutions
Which One to Select, GLC-LH-SM Vs GLC-LH-SMD? | by Monica Geller | Medium