EX-SFP-1GE-LX40K-PCW is a 1000BASE-LH SFP Transceiver, generic for Juniper EX-SFP-1GE-LX40K. It is guaranteed compatible for all Juniper switch and router product lines. This transceiver can be mixed and deployed with Juniper OEM transceivers for seamless network performance and interoperability. PC Wholesale offers a LIFETIME advance replacement warranty on all transceivers (compared to 90 days from most OEM manufacturers).