I refused to pay Staples another $9.00 for an Inline Coupler. Once I checked the prices at MonoPrice I determined I will not buy another cable or coupler locally.
The 7281 couple shows excellent workmanship along with a tight, solid connection between the two cables. I like its metalic construction rather than the plastic one from Staples. (I have not tried the plastic ones from MonoPrice.) I doubt that I will switch from the 7281 because I find it so reliable. I think you will find the same.
We moved into a new house and the existing CAT5e cables weren't long enough to be plugged into an Ethernet switch. Used these inline connectors to extend cables from patch panel to a PoE switch. Both powered (PoE) and non powered equipment worked perfectly.
Ordered these several times over the years and have never seen a failure. Definitely recommend the durable metal construction over plastic if you're planning on burying runs in floors, ceilings, or walls. I haven't tested it, but these should withstand being stepped on or hit by vacuums as well.
PROS: Durable construction. Metal never separates or loosens like the plastic couplers. Gigabit still functions over long, coupled runs, so attenuation is within acceptable parameters
CONS: Need to concentrate when inserting 8P8C connector to make it fit due to snug connection, though this could be counted as a pro as well. Has somewhat larger footprint than most of its plastic counterparts.