This listing is for a 4U Fiber Splice Cassette Enclosure. This also comes with 5 splice cassettes. The cassettes and enclosure are both made by MultiLink. They are also both used. The cassettes have a single mode 900um fiber pigtail with SC APC connectors on one end. The other end had already been spliced into a ribbon fiber on all 5 cassettes. The fiber can be cut before the splice and they can be reused on fresh glass for a fraction of the cost. This enclosure will hold 12 of these splice cassettes. Most of the dust covers are not in the ports. This lot retail was over $2000. I’m willing to make a deal to where we all win. I also have 7 unused “new open box” splice cassettes on another listing. I would love to make a deal for everything. This enclosure is solid metal and it’s heavy. There is a slightly bent corner where the tab on the face of the enclosure slides into the slot on the topside of the enclosure. There is a picture of this spot uploaded as the last photo. It is overall minor and the enclosure still does exactly what it is supposed to. Please let me know if you have any questions or needs of me.