HPE JD118B is a HP X120 1G SFP LC SX Transceiver. It’s a small form-factor pluggable (SFP) Gigabit SX transceiver that provides a full-duplex Gigabit solution up to 550m on a Multimode fiber.
HPE JD119B is a HP X120 1G SFP LC LX Transceiver. It’s a small form-factor pluggable (SFP) Gigabig LX transceiver that provides a full duplex Gigabit solution up to 550m on MMF or 10Km on SMF.