At first an ethernet extension cable might seem like an unnecessary bother – surely you can just buy a longer cable for about the same price – but there’s an extra benefit you might not think of.
If you’re going to run the cable anywhere it could be a trip hazard, this extension could protect your computer or router’s ethernet port in case the cable gets yanked out unexpectedly. Instead of risking damaging the hard-to-replace port on your device, the extension lead could take the brunt of it, leaving you with a much cheaper replacement to worry about.
This version is also Cat6 with shielding, so should ensure high enough speeds – just make sure you pair it with a similarly speedy cable.
It you already have several short ethernet cables lying around, search for RJ45 couplers on ebay or Amazon as they let you join leads together and usually cost very little.