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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor Arrester Protection Device Extension Adapter(2-Pack)

Product ID: 97735136

Details

Brand
CERRXIAN
Color
black
Product Dimensions
17.72"L x
Special Feature
Surge
Total Power Outlets
16

⚡8 TVS surge suppressors

🌐100Mbps data transmission

🔗RJ45 female-to-female coupler

¥3217

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Description

⚡ Protect your network like a pro—surge defense meets seamless extension!

LIGHTNING FAST DEFENSE - Built-in 8 TVS diodes shield your network from damaging surges and lightning strikes ⚡
PLUG PLAY SIMPLICITY - No confusing input/output sides—just connect and protect instantly, indoors or outdoors 🔌
RELIABLE 100 MBPS SPEED - Maintain smooth, uninterrupted data flow with stable 100Mbps transmission rates 🌐
SEAMLESS NETWORK EXTENSION - Easily connect two Ethernet cables with the female-to-female RJ45 coupler for flexible setups 🔗
EMI SHIELDING FOR CRYSTAL CLEAR SIGNALS - Metal enclosure and fixed interface block electromagnetic interference to keep your connection pristine 🛡️

The CERRXIAN Ethernet Surge Protector RJ45 Coupler (2-Pack) combines robust surge protection with convenient cable extension. Featuring 8 built-in TVS diodes, it safeguards your network devices from lightning and abnormal currents while supporting 100Mbps data speeds. Its metal shielding blocks electromagnetic interference, ensuring signal integrity. Designed for easy plug-and-play use with identical RJ45 female ports on both ends, it’s perfect for indoor and outdoor network setups.

Specifications

ASIN	B07LG32KFF
Best Sellers Rank	#16,847 in Electronics ( See Top 100 in Electronics ) #176 in Surge Protectors
Brand	CERRXIAN
Color	black
Compatible Devices	Personal Computer
Customer Reviews	4.2 4.2 out of 5 stars (332)
Enclosure Material	Metal
Item Dimensions L x W	17.72"L x 10.24"W
Item Weight	0.02 kg
Manufacturer	Lemeng
Mfr Part Number	cx-21
Model Number	8541544724
Number of Items	2
Number of Outlets	16
Number of Packs	2
Number of Ports	8
Other Special Features of the Product	Surge Protection
Plug Type	Type A
Recommended Uses For Product	Indoor, Outdoor
Shape	Rectangle
UPC	680613035776
Unit Count	2 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

¥3217

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews