These are new, unused. We do not have the original packaging for them. These were purchased to install at a client's job site and it turned out that they needed single mode sfp while these are dual mode so now we are selling them to you to recoup some of the cost, otherwise these are new and unused. We realized it wasn't to scope for the project before they were used but the original packaging had already been discarded.
There are four SFP modules available and each order of (1) gets you (1) SFP module - if you want all (4), change Qty to 4 for your order.