Phone Jack to Ethernet Cable Adapter, RJ45 8P8C Female to RJ11 6P4C Male for Landline Telephone Service (2 Pack)
Quick take
This RJ45 female to RJ11 male adapter turns an Ethernet wall outlet into a phone-line connection for fixed landline devices. It is designed for setups where your phone service is actually delivered through an RJ11/landline path, not for broadband internet or Wi-Fi networking. The main caveat is compatibility: if your router and phone service are not connected through the correct RJ11 landline route, it will not work for internet sharing.
Pros and cons
Pros
- Made for landline use cases like telephones, fax machines, and DSL modems, using an Ethernet wall jack
- RJ45 (8P8C) female to RJ11 (6P4C) male connector style for fixed equipment
- Metal shield and gold-plated metal contacts to help maintain a solid connection
- Includes a 2-pack and a short 6-inch cable for typical in-room bridging
Cons
- Not intended to carry broadband data from a router, so it is not a workaround for internet
- Only works when your landline service is connected through the correct RJ11 telephone pathway (not the router’s Ethernet port)
- Short cable length (6 inches) may be limiting if your devices are spaced farther apart
What buyers think
Buyer-review evidence is centered on ease of use and whether the adapter “does the job” for turning Ethernet-jack locations into a working phone-line endpoint. Multiple shoppers describe straightforward setup and functionality with Ethernet outlets around the home. Review coverage is also consistent with the product’s intended category, with some feedback suggesting it can serve as a practical stop-gap when the primary goal is using fixed landline equipment in Ethernet-wired rooms. At the same time, the overall evidence also highlights that getting the expected result depends heavily on whether the home’s landline service path matches the adapter’s intended use (some buyers found their broader setup plan did not work out, though not necessarily due to the connector itself).
What this adapter is for (and what it is not)
This is an RJ45-to-RJ11 conversion cable for fixed telephone equipment. In practical terms, it is meant to help when you have Ethernet wall ports in a room, but you need to plug in a landline-style device that uses an RJ11 phone connection.
It is supported by its described use: connect fixed devices such as a telephone, fax, or DSL modem through Ethernet cable conversion. The adapter is also designed around the correct workflow, where RJ45 couplers and RJ45-to-RJ11 cabling are used together to bring a landline endpoint to the room.
What it is not designed to do is carry broadband internet signals from a router over a phone-line connection. If your goal is routing internet or using the adapter as part of an internet-over-Ethernet solution, it is the wrong tool for the job.
Key specs and design details
Connector types
- RJ45 (8P8C) female to RJ11 (6P4C) male
Cable and construction
- 6-inch cable length
- 28 AWG cable
- Gold-plated metal contacts
- Metal shield for added protection
Compatibility scope
- Works with RJ45 wiring standards commonly referenced as Cat7, Cat6, Cat5, and Cat5e (via RJ45 compatibility)
- Intended for telephone, fax, and DSL modem style connections (not for broadband data routing)
Pros and cons for real buying decisions
When it makes the most sense
- You want to place a landline phone, fax, or DSL modem in a room that has an Ethernet jack but no dedicated telephone jack
- You have landline service that can be routed to the phone side through an RJ11 path, so the adapter’s job is simply converting the wall interface
- You prefer a compact 2-pack solution for multiple rooms or multiple devices
When you should pause or look for another option
- Your setup depends on pulling internet (broadband) from a router over a telephone-line style connection
- You planned to connect the adapter to the router’s Ethernet port and treat it like an internet extension
- Your device placement requires longer reach than 6 inches between the adapter endpoint and the device
Price and availability
The product is priced as a low-cost adapter kit and is currently listed as in stock. Because adapter needs are highly specific to your wiring plan, it is worth double-checking compatibility before purchase, especially whether your landline service is provided through an RJ11 telephone path rather than being intended to move broadband data.
Verdict: is it worth it?
If you need RJ11 landline connectivity in an Ethernet-wired room, this 2-pack RJ45 female to RJ11 male adapter is a practical, compact solution. It is best for telephones, fax machines, and DSL modems where the landline service path matches the adapter’s intended use. It is not a broadband or router-to-phone internet workaround, so shoppers looking for internet distribution should avoid it and focus on options designed for network and broadband routing.
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FAQ
Can I use this to connect a router to get internet in a new room?
No. This adapter is not intended to transmit broadband internet signals from a router or to function as an internet-routing solution. It is intended for landline-style telephone equipment connections.
Will it work with a landline phone or fax machine?
Yes, it is designed for fixed telephone equipment such as telephones and fax machines, where the wiring route provides the landline service through the proper RJ11 pathway.
Do I need phone service through an RJ11 connection for it to work?
In most correct setups, yes. The adapter is meant to be used when your fixed-line telephone service is accessed through an RJ11/landline telephone jack, not by connecting to the router’s Ethernet port.
How long is the cable?
The cable length is 6 inches, which is usually fine for close placement between the adapter and the RJ11 device, but it may feel short if you need extra distance.
What is in the 2-pack?
The kit includes two 6-inch RJ45 to RJ11 cables and two RJ45 couplers (female to female) used with the conversion workflow.
Specifications
| Product Title | Phone Jack to Ethernet Cable Adapter, RJ45 8P8C Female to RJ11 6P4C Male for Landline Telephone Service (2 Pack) |
|---|---|
| Category | Electronics > Accessories & Supplies > Telephone Accessories > Telephone Cords |
| Brand | XCZZYB |
| Manufacturer | XCZZYB |
| Model Number | XCZZYB-019 |
| Color | black |
| Item Weight | 0.05 Kilograms |
| Hardware Interface | Ethernet |
| Compatible Devices | Telephone, Fax, DSL Modem |
| Data Link Protocol | Ethernet |
| Data Transfer Rate | 100 Megabits Per Second |
| UPC | 709226029450 |
| Mfr Part Number | XCZZYB-019 |
| Unit Count | 1 Feet |
| Number of Items | 2 |
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