10GBASE-ER-XFP-PCW is a 10GBASE-ER XFP Transceiver, generic for Enterasys 10GBASE-ER-XFP. It is guaranteed compatible for all Enterasys switch and router product lines. This transceiver can be mixed and deployed with Enterasys 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).