pete_c
Guru
Here still have coaxial cable running where there is no Ethernet such that purchased a set of these and getting 100Mps just fine with about a 100 foot run of RG6 cable. You need a transformer at each end for these to work.
For $14 a pair it's not a bad deal and today you cannot purchase a MOCA adapter for less than $50.
Note that it is not a small footprint versus just an RJ-45 Ethernet POE connection on a wall plate.

Here is a comment on said product.
If you do not have cable TV, then these are perfect/economical for adding Ethernet access to any room in your home if your room is equipped with coax. As a basic principle Cable TV operates between 5 MHz to 1 GHz while Satellite Operates between 1 GHz and 2 GHz. The DECA (Satellite) operates at 425 MHz to 625 MHz and MOCA (Cable) operates between 950 MHz to 1050 MHz (some around 1150 MHz to 1500 MHz). See the difference so the cable/satellite signals do not overlap with MOCA/DECA signals. If you have Cable TV in your coax line, then you need to use MOCA devices which costs around $60 to $80. But these devices only cost $10, and has the same ENTROPIC chip similar to MOCA except for the frequency of operation. Knowing the basic info, you do the math which device you want to use, DECA or MOCA, in my case spend $60 or $10?
For $14 a pair it's not a bad deal and today you cannot purchase a MOCA adapter for less than $50.
Note that it is not a small footprint versus just an RJ-45 Ethernet POE connection on a wall plate.

Here is a comment on said product.
If you do not have cable TV, then these are perfect/economical for adding Ethernet access to any room in your home if your room is equipped with coax. As a basic principle Cable TV operates between 5 MHz to 1 GHz while Satellite Operates between 1 GHz and 2 GHz. The DECA (Satellite) operates at 425 MHz to 625 MHz and MOCA (Cable) operates between 950 MHz to 1050 MHz (some around 1150 MHz to 1500 MHz). See the difference so the cable/satellite signals do not overlap with MOCA/DECA signals. If you have Cable TV in your coax line, then you need to use MOCA devices which costs around $60 to $80. But these devices only cost $10, and has the same ENTROPIC chip similar to MOCA except for the frequency of operation. Knowing the basic info, you do the math which device you want to use, DECA or MOCA, in my case spend $60 or $10?