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⚡ Protect your network like a pro—surge defense meets seamless extension!
The CERRXIAN RJ45 Coupler Ethernet Network Surge Protector (2-Pack) combines robust surge protection with convenient cable extension. Featuring 8 built-in TVS diodes, it safeguards your expensive routers and outdoor POE antennas from lightning and abnormal currents. Its dual-pass RJ45 design allows easy connection of two Ethernet cables without signal loss, while EMI/RFI shielding preserves data integrity. Made from flame-retardant materials and designed for plug-and-play use, this adapter is a must-have insurance for any professional-grade network setup.
| ASIN | B07LG32KFF |
| Best Sellers Rank | #34,218 in Electronics ( See Top 100 in Electronics ) #222 in Surge Protectors |
| Customer Reviews | 4.4 4.4 out of 5 stars (312) |
| Date First Available | December 29, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.81 ounces |
| Item model number | 8541544724 |
| Manufacturer | Lemeng |
| Product Dimensions | 17.72 x 10.24 x 0.04 inches |
D**T
Works really well passing ethernet signal
I had tried 2 other lightning arresters. One switched the signal from 4 to 5. The other, did not switch any signals, but would not work in my setup. Perhaps I should explain my set up. I have a micro wave antenna which captures a signal from my ISP and converts it to an Ethernet signal. We live on a mountain in Tennessee which is often struck by lightning. Therefore, I really need lightning protection on any wired connection. From the ethernet signal from the antenna I connect with an ethernet 8 rj45 unmanned switch which supplies my EERO gateway and the fiberglass connection to my office. The other 2 arresters would not work. This one seems to pass the ethernet signal flawlessly. It is not connected to ground. All of the other 2 are connected to ground. Whether it will protect against lightning I do not know. When we have another storm with cloud to ground lightning I will report again. Amazon lets one add to reviews.
D**N
Great insurance
So far so good, of course only a surge will tell in the fututre. Well made and fit perfectly . We had a lightning strike come in through the cable took out tv modem and royter and cable box, had surge protected wall oytlets but not the cable
G**O
Good for 100Mbps
Work fine but 100Mbps Not for 1Gpbs NICs
J**R
2+ years problem free
Been using 2 years without a problem, but how would you know if it did anything? I got these after an ethernet port on my router got fried where I had it connected to another building. I used a different port and installed one of these on each end of the wire with a 1 ft patch cord.
D**N
fingers crossed
We had a lightning strike that took out all sorts of stuff, mostly internet stuff including stuff that was on surge/UPS protection. I now have an earth grounded surge protector on the twisted pair that comes in from AT&T. We assume that's how it got in and spread. These are in-line and don't require an earth ground so I put one on my generator (lost the logic board on this) and one on the line between my gateway and my switch.
E**E
Good quality
Product very good, fits my ethernet cables perfect
D**.
Good job
Good job so far
M**R
Felt cheap
Cheap quality
م**ر
المنتج جيدا شركه الشحن سيئة سيئه جدا وغير ملتزمة
K**N
For these to protect against electrical surges,so far so good
TrustPilot
2 周前
2 周前