Matched Pr./QTY 2 GENUINE Nortel AA1419013 JSMR12S004801 1000Base-SX MM 550M SFP

Description

This auction is for a MATCHED PAIR (quantity of 2) genuine Nortel (not a generic import) fiber/fibre transceivers. They were installed only once, worked until switch stack was replaced by 10 GbE, then pulled and placed into the anti-static package ready to be shipped.  MATCHED PAIRS have the best compatibility with each other and generally have the best throughput.  Mixing and matching sometimes works and sometimes doesn't.  Off-brand and generics also tend to have compatibility issues in my experience.
*PLEASE NOTE* This auction is for the type JSMR12S004801, which has a different case design from other SX transceivers so please verify what you need for your switch.