5-Pack LC UPC Duplex Fiber Optic Keystone Coupler Jack, OM1/OM2/OM3/OM4 Multimode, OS2 Single Mode Support

I recently purchased the Cable Matters 5-Pack LC UPC Duplex Fiber Optic Keystone Coupler Jack, and I am extremely impressed with the quality and performance of these couplers. They are well-constructed and fit perfectly into my patch panel, providing a secure and reliable connection for my fiber optic cables.The installation was straightforward, and the couplers snapped into place without any issues. I appreciate the protective caps that come with each coupler, which help keep the connectors clean and free from dust. The compatibility with various fiber types (OM1/OM2/OM3/OM4) is a huge plus, making these couplers versatile for different networking needs.Since installing them, I have experienced no signal loss or connectivity issues, and the overall performance of my network has been excellent. These couplers are a great value for the price, and I highly recommend them to anyone looking for reliable and high-quality fiber optic keystone jacks.

These are just what I needed and they work great. My sever cabinet is in a small cabinet in a small closet in my hallway just outside of the living room. I needed to pass OM3 from my aggregation switch through the closet wall and into my office for a 10g connection to a 10g switch in my office. Using these via a wall plate allowed me to neatly pass the om3 through the wall and still have a couple of extra spaces in the wall plate to pass through cables for future connection with out having to put new holes in the wall.

Many of the keystone pass-through connectors have two small tabs that stick out the sides of the connector making multiple connectors too wide to fit in a patch panel next to each other. These Cable Matters connectors don't need those tabs so they fit perfectly.

I'm using these as interconnects in a small rack I put together for my NVR. I have them installed in a 1U 16-port Tripp Lite keystone panel. I have no issues using these with my OM4 LC cables. I only have 10G SFP+ transceivers and short, 50 ft runs, but I'm getting full bandwidth and no dropped packets.

This coupler sits sturdy in my keystone patch panel. It couples two OM3 cables nice and tight. The connection is running at 10Gbps without any problems. It makes the fiber connections look much cleaner with the patch panel setup.

I do not know why it wants me to rate these on “sheerness” and “stretch”; as far as I can tell, these cannot be used as pantyhose, and even if they could, that’s not what I bought them for. They CAN be used as keystone jack LC fiber couplers, though, and they work fine in that capacity. These are particularly useful because they’ll fit side-by-side in tight keystone configurations, including 6-port Decora plates (which can even be a pain to get Ethernet jacks into) and 24-port rackmount Keystone patch panels like the ones from Monoprice (also sold here). They cost a wee bit more than the standard ones, which are fine if you have a standard 6- or 12-port keystone plate, but these fit basically anywhere.

Works great in my Trendnet patch panel. Using these keystones to clean up my setup. Now I have the fiber cable from my server to one end and the other end to the sfp on my switch.Wish this came in black.

I actually didn't expect these to work as well as they have been for the last year that I have been using them in my rack setup. Work well and these are an easy setup as they just snap into your cable matter 24 port keystone block for server racks and just plug into both ends going to your network switch, and then they fired right up without any issues.