Parts Express Cable TV in-Line Coaxial Surge Protector

Easy installed inline and forget about any surges in picture quality.

I ordered this as I have been having problems with blown HDMI ports on my Samsung UHD TV that just started late last year. I am using a good quality surge suppressor so suspected that there was possibly a spike coming through my Xfinity cable TV coax. Just to be sure I ordered this coax suppressor.This part is plug and go - no settings on the TV need to be changed. The quality of the TV's picture, sound and operation was not impacted by the use of this part. I have Xfinity X1 service which uses a technology called MOCA (Multimedia over Coax) which is essentially internet service running over the coax cable which can only be accessed by the Xfinity system. This internet over coax permits you to record a program on a DVR in 1 room and then watch in another, downloads the TV schedule from Xfinity's servers, etc. If a X1 connected TV can not use MOCA then the Xfinity service will not work. This part, as advertised, is MOCA compatible and all X1 functions continued to work after connecting this suppressor.I also tested this suppressor on the coax connected to my Xfinity internet box and there was no impact on home internet performance. I tested the internet speed before and after attaching this suppressor using Ookla’s speed test and the speed, jitter, packet loss, etc. were virtually identical with and without the suppressor attached.I can’t attest to how effective this part would be with a surge coming over the Xfinity coax but at least I am sure that the use of this part won’t make things worse and based on the specs will almost certainly reduce the possibility of an electrical surge damaging my equipment.

I tried to get lightening to strike my house so I could tell you if this works, but I couldn't arrange it. I think it works. I hope it works. Parts Express sells good products so I'm trusting them. Someone much smarter than me calculated that you need to put this into the line at least 6 feet before what you're protecting, so I did. Now we wait and see.

I bought this a little over 5 years ago, I bought a set of two and today I put the other one on because apparently I must have gotten hit by lightning or had a power surge or something because my TV was not working, I put the second surge protector on and everything is up and working again, I am buying two more to have on hand

Works very good I had 2 tv’s get hit by lightening in a week put this surge depressor everything going good now

Didn't last long

We purchased the Parts Express Cable TV in-Line Coaxial Surge Protector because mother nature is unpredictable and could send a lightning strike directly, or near, your home and wreak havoc on your entire electrical system. This device is an inexpensive insurance policy that protects your antenna's television or radio hookups from roasting the signal inputs due to lightning threats. Highly recommended.

I purchased this product after several home video switchers bit the dust during storms.I also added a second in-line protection device. This second device has a connection that can be connected to a J-box or conduit for a ground.So, the in-line protection device (this item) takes the first "hit".The second device (should) send the surge to a wall box or conduit with a decent ground.Will update this review (if needed) when we get a round of stormy weather.