does this work with telephone line?

Yes, the RJ45 coupler works with telephone line but you need to use Cat7, Cat6, or Cat5e to get the speed effect. Hope this helps

Are these couplers capable of 10gbps or 1gbps? The description says 10gbps but the specification says 1gbps.

Hi friend, The RJ45 coupler Ethernet extender supports 1Gbps at max. Hope it helps.

can i connect 4 150ft ethernet cords to them?

Yes and No. The maximum allowed length for ethernet is 328 ft, but you can use an ethernet switch to extend another 328 ft. So, you can actually go the desired length (600 ft) by connecting as follows - 150' cable, coupling, 150' cable, switch, 150' cable, coupling, 150' cable. Here's a typical 5 port switch - NETGEAR ProSAFE 5-Port Gigabit Ethernet Switch (GS105 v5) ~$30

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UGREEN RJ45 Connector Extender(5 Pack), Cat7 Cat6 Cat5e 8P8C LAN Ethernet Cable Adapter, RJ45 Coupler Adapter Ethernet Extender, Network Female to Female Ethernet Coupler with Thunder Protection

UGREEN RJ45 Connector Extender(5 Pack), Cat7 Cat6 Cat5e 8P8C LAN Ethernet Cable Adapter, RJ45 Coupler Adapter Ethernet Extender, Network Female to Female Ethernet Coupler with Thunder Protection

Product ID: 47943701

Details

Colour
Black
Compatible devices
Network with
Connector type
Ethernet RJ45
Item dimensions L x W x H
25 x 185 x 130
Specific uses for product
Laptop Switch

⚡Thunder protection for surge safety

🔗Supports Cat5 to Cat8 cables seamlessly

🚀Up to 1000Mbps stable network speed

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Description

🔌 Extend your network, not your worries!

PLUG PLAY SIMPLICITY - Effortlessly extend your network without any speed loss or packet drops.
ROBUST METAL SHIELDING - Full metal protection blocks interference ensuring crystal-clear data transmission up to 50 meters.
UNIVERSAL COMPATIBILITY - Works flawlessly with Cat5, Cat5e, Cat6, Cat7, and Cat8 cables for ultimate flexibility.
COMPACT DURABLE DESIGN - Heat-resistant ABS housing built to last and fit discreetly in any home or office setup.
RELIABLE CONNECTION EVERY TIME - Precision 8P8C modular RJ45 connectors maintain tight, secure links even with repeated use.

The UGREEN RJ45 Connector Extender (5 Pack) is a high-quality Ethernet coupler designed to seamlessly connect two network cables, extending your LAN setup without compromising speed or stability. Compatible with Cat5 through Cat8 cables, it supports up to 1000Mbps data transfer and features full metal shielding to prevent interference. Its compact, heat-resistant ABS housing ensures durability and a secure fit, making it an essential tool for professionals seeking reliable, plug-and-play network expansion.

Specifications

ASIN	B016B13U5S
Best Sellers Rank	11,723 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 240 in Ethernet Cables
Brand Name	UGREEN
Colour	Black
Compatible Devices	Network devices with RJ45 connector
Connector Type	Ethernet, RJ45
Country of Origin	China
Current Rating	0.5 Amps
Customer Reviews	4.6 4.6 out of 5 stars (3,568)
External Testing Certification	Não aplicável
Item Dimensions	25 x 185 x 130 millimetres
Item Weight	0.11 Kilograms
Manufacturer	Ugreen Group Limited
Manufacturer Part Number	2724595936114
Model Number	20390P5
Number of Items	5
Number of Ports	1
Package Quantity	1
Power Plug Type	No Plug
Product Finish Type	Abs,Metal
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Laptop, Nintendo Switch, Television, Personal Computer, Router, Printer
Unit Count	5.0 count
Warranty Type	Limited

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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.

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¥4309

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

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TrustScore 4.5 | 7,300+ reviews

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