You don't know the difference between cm and mm... and I should trust your electrical design skills?

Thank you for your suggestions and reading.We have fixed the error, please feel free to contact us if you have any other questions.

Were does a ground wire connect?

No,it doesn't.But we have anoter version product which with a ground wire.

Will this work with PoE devices?

Yes = that's what I used them for.

Does this not need a separate grounding wire?

If your device is exposed to strong current, we recommend that you connect to a ground wire.

Cerrxian Ethernet Surge Protector Rj45 Coupler Female To Female Network

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

2767 kr

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In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Protect your network like a pro—because downtime is so last decade!

DUAL PACK VALUE - Two surge protectors included, perfect for safeguarding multiple critical devices simultaneously.
PLUG PLAY SIMPLICITY - No confusing input/output sides—just connect and protect instantly, indoors or outdoors.
LIGHTNING READY DEFENSE - Built-in 8 TVS diodes shield your network from damaging surges and lightning strikes.
EMI SHIELDING EXCELLENCE - Robust metal enclosure blocks electromagnetic interference for crystal-clear data flow.
SEAMLESS NETWORK EXTENSION - Easily connect two Ethernet cables to extend your network reach without signal loss.

The CERRXIAN Ethernet Surge Protector RJ45 Coupler (2-Pack) combines surge protection and network extension in a compact, metal-encased device. Featuring 8 TVS diodes, it safeguards your Ethernet connections from lightning and abnormal currents while maintaining a stable 100Mbps data rate. Its plug-and-play design with identical RJ45 female ports ensures hassle-free installation indoors or outdoors, making it an essential insurance policy for expensive routers, POE antennas, and critical network gear.

Specifications

ASIN	B07LG32KFF
Best Sellers Rank	#28,719 in Electronics ( See Top 100 in Electronics ) #231 in Surge Protectors
Brand	CERRXIAN
Color	black
Compatible Devices	Personal Computer
Customer Reviews	4.4 out of 5 stars 318 Reviews
Enclosure Material	Metal
Item Dimensions L x W	17.72"L x 10.24"W
Item Weight	0.02 Kilograms
Manufacturer	Lemeng
Mfr Part Number	cx-21
Model Number	8541544724
Number of Outlets	16
Number of Ports	8
Other Special Features of the Product	Surge Protection
Plug Type	Type A
Power Plug Type	Type A - 2 pin (North American)
Product Dimensions	17.72"L x 10.24"W
Recommended Uses For Product	Indoor, Outdoor
Shape	Rectangle
Special Feature	Surge Protection
Total Power Outlets	16
UPC	680613035776
Unit Count	2 Count

Reviews

D**T

3.08.2019

D**N

18.09.2025

G**O

21.11.2025

J**R

20.11.2025

D**N

14.11.2024

E**E

25.05.2025

G**A

9.05.2025

H**Y

3.06.2023

م**ر

6.08.2025

K**N

9.12.2023

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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