KB-T3-01 · G.hn Wave 2 phone line to Ethernet adapterThe phone jacks in your walls. Now fast wired Ethernet.
Plug one adapter in next to your router and one into a phone jack in any other room. The G.hn Wave 2 link carries your network over the telephone wiring you already have, at up to 1.6 Gbps into a 2.5GbE port — and your landline keeps working. No drilling, no new cable, no Wi-Fi dead zones.
The KB-T3-01 at a glance
Everything you need to decide in 20 seconds.
- What it is
- A G.hn Wave 2 phone line to Ethernet adapter with a 2.5GbE port, sold as a kit of two.
- What it does
- Carries wired internet from your router to any room with a phone jack — up to 1.6 Gbps over wiring you already have.
- Perfect for
- Homes with fiber, cable or 5G internet, where the old phone jacks sit unused — or still carry a landline.
- Not for
- A wire pair that carries DSL internet. Use a spare pair instead — most phone cables have one.
- Your phone
- Keeps working: plug it into the PHONE port. A built-in filter keeps voice and data apart.
- Setup
- Plug and play in about five minutes. No software, no app, works with any router.
Wi-Fi fades through walls. Your phone wiring doesn’t.
Extenders and mesh nodes repeat a signal that every wall and floor has already weakened. Powerline adapters share your electrical wiring with fridges, chargers and dimmers.
The KB-T3-01 uses something better: the twisted-pair telephone wiring that already connects your rooms. It’s a dedicated cable path, so the connection stays steady whatever else is running in the house — ready for 4K streaming, video calls and online gaming.
Wi-Fi extender or powerline
- Speed drops with every wall and floor
- Powerline is disturbed by appliances
- Latency jumps when the signal weakens
KB-T3-01 over your phone line
- A wired link on its own wire pair
- Up to 1.6 Gbps into a 2.5GbE port
- Unaffected by walls and appliances
- Your landline keeps working
Will it work in your home?
The KB-T3-01 needs one pair of phone wires linking the two rooms — with no DSL internet on that pair. Two quick questions and you’ll know.
1What runs on your phone line today?
2Which wall socket do you have?
Pick an answer to each question
We’ll tell you straight away whether the KB-T3-01 fits your home.
The KB-T3-01 fits your home.
Put one adapter next to your router and one at a phone jack in the room that needs a connection. Both jacks must be on the same phone wiring — in most homes, they are.
Works on a spare pairYes — on a wire pair without DSL.
G.hn can’t share a pair with DSL, because both use the same frequencies. Most in-home phone cables have two to four pairs but use only one, so connect the adapters to a spare pair. On VDSL lines, including UK FTTC, a notch setting in the web page protects your broadband — the user guide shows how.
Possible with an adapterIt works — you may need a socket adapter.
The included 4-wire RJ11 cable fits RJ11 and RJ14 jacks and RJ45 data sockets. For other sockets, use a simple adapter to RJ11, or connect bare wires with a terminal block.
Your jacks take the included RJ11 cable directly — nothing else to buy.The UK version includes two BT-to-RJ11 adapters, so it plugs straight into BT master and extension sockets.Not sure what you have? Email a photo of your socket to info@kiwee-broadband.com and we’ll tell you what fits.Keep your landline: plug the phone into the adapter’s PHONE port.Everything a wired room needs
G.hn Wave 2 is the ITU standard for fast home networking over existing wires. We built the KB-T3-01 for the phone jacks you already have.
Up to 1.6 Gbps on phone wire
Lab-measured at up to 1.6 Gbps with two wire pairs (MIMO) and 1.54 Gbps on a single pair. Real-world speed depends on the length and condition of your wiring.
2.5GbE port, no gigabit cap
A 1GbE port would cap the link at 1 Gbps. The 2.5GbE port passes the full G.hn speed on to a 2.5G PC, NAS, router or access point.
Your landline keeps working
A built-in filter on the PHONE port separates voice from data on the same pair. Analog phones, fax machines and DECT bases plug straight in — no splitter.
One pair or two (MIMO)
Two wires are enough. Jacks wired with four wires (line 1 + line 2)? Switch to MIMO for top speed and more reach on long runs. 4-wire cables included.
AES-128 in one press
Hold PAIR for three seconds on each adapter to encrypt your network — important where phone wiring is shared between apartments.
Grows with your home
Up to 16 adapters on the same wiring, each talking directly to the others. Daisy-chained and home-run jacks both work.
Two adapters. The phone wiring in between. That’s the network.
Adapter A sits next to your router, adapter B in any room with a phone jack on the same wiring. They find each other automatically and carry Ethernet over the phone line — while voice keeps flowing to your phone.
DSL also uses the range above voice, so it can’t share a pair with G.hn — use a spare pair. Phones on other pairs of the same cable don’t disturb the network.
Every port, explained
Tap a port on the rear panel to see what it does.
Keep your landline
RJ11 pass-through for an analog phone, fax or DECT base. The built-in filter keeps voice and data apart on the same pair. Not for ISDN equipment or DSL modems.
To the phone jack
RJ11 to your wall jack. Data runs on the center pair (pins 3/4), the pair a normal phone line uses; MIMO adds the second pair (pins 2/5) for up to 1.6 Gbps.
One 2.5GbE port
RJ45 to your router, fiber ONT, PC, console, TV or access point. Auto-negotiates 2.5G, 1G, 100M and 10M.
One-touch encryption
Hold 3 seconds to pair adapters into a private AES-128 network. Hold 6 seconds to leave it again.
5 V power, wall or USB
5 V DC, 1 A (5 W max). Use the power adapter, or the USB-A to DC cable on a USB 3.0 port of your router, PC or TV.
Factory reset, underneath
Hold the reset button on the underside for more than 10 seconds to restore all factory settings, including pairing.
POWER
- Solid green — powered on
- Off — no power
G.hn
- Blinking green — link over 300 Mbps
- Blinking orange — 100–300 Mbps
- Blinking red — under 100 Mbps
- Off — no other adapter found
LAN
- Solid green — device connected
- Blinking — data traffic
- Off — nothing connected
PAIR
- Off — not encrypted (default)
- Blinking — pairing mode
- Solid green — AES-128 secured
One pair is enough. Two pairs go further.
Most phone cables carry two to four pairs of wires. The KB-T3-01 works on one — and can use two for more speed and reach.
One pair (2 wires)
The standard setup: the pair your phone line uses, or any spare pair. Factory default — ready out of the box.
Two pairs (4 wires) · MIMO
Jacks wired for two lines? Switch both adapters to MIMO in the web page. It skips the upper frequencies that fade over distance and uses both pairs instead — more speed on long or older runs.
All adapters on a network must use the same pair(s) and the same profile. * Lab-measured maximums; real-world speed depends on the length and condition of your wiring.
Where a phone jack beats Wi-Fi
Any room with a phone jack becomes a wired room.
Dropped the landline for fiber, cable or 5G? The wiring is still there.
The phone company is gone, but its wiring still reaches the bedrooms, the den and the basement. Put one adapter by your router and another in any room: the old phone line becomes a fast wired network, without drilling a single hole.
Fiber ONT in the basement
Fiber box in the basement, garage or a closet? Carry the connection over the phone line to the router where you actually need Wi-Fi. A static-IP mode keeps the bridge clean.
Home office
Desk PC and docking station on a steady wired link: no more frozen video calls or crawling uploads.
Gaming
Consoles and gaming PCs get a stable, low-latency cable connection instead of a Wi-Fi hop.
Mesh and Wi-Fi backhaul
Give a mesh node or access point a wired backhaul, so the far end of the house gets strong, steady Wi-Fi.
Streaming and IPTV
4K streaming over a cable, with IGMP snooping for IPTV and VLAN pass-through for provider setups.
Apartments and condos
Phone wiring can be shared between units. One press of PAIR encrypts your network with AES-128.
The fastest way into a far room — without drilling
How the KB-T3-01 compares with the usual ways to get a connection into another room.
| Option | KiweeKB-T3-01 (phone line) | Wi-Fi extender or mesh | Powerline adapters | New Ethernet cable |
|---|---|---|---|---|
| Speed to the room | Up to 1.6 Gbps | Varies with walls and distance | Varies with wiring and noise | Up to 2.5GbE and more |
| Stability | Own wire pair | Interference-prone | Affected by appliances | Excellent |
| Latency | Low and steady | Variable | Variable | Lowest |
| Uses | Existing phone jacks | Radio | Power outlets | A new cable run |
| Installation | Plug and play | Easy | Easy | Drilling, electrician |
| Landline | Keeps working | — | — | — |
Which Kiwee adapter is right for you?
Phone jacks, coax outlets or cable internet — there’s a Kiwee adapter for each.
| Model | This pageKB-T3-01 | KB-G3-01 | KB-M3-02 |
|---|---|---|---|
| Wiring | Telephone wiring (RJ11) | TV coax | TV coax |
| Technology | G.hn Wave 2 | G.hn Wave 2 | MoCA 2.5 |
| Ethernet | 1 × 2.5GbE | 1 × 2.5GbE | 2 × 2.5GbE |
| Max. over the wiring | 1.6 Gbps | 1.6 Gbps | 2.5 Gbps |
| Shares the wiring with | Your landline | Satellite and antenna TV | Cable internet and TV |
| Best for | Homes with phone jacks | Coax homes without cable internet | Cable-internet homes |
Phone-line and coax adapters each work on their own wiring. G.hn and MoCA adapters do not interoperate.
Online in about five minutes
No tools, no software, no router settings. The adapters link up on their own.
Adapter A at the router
Router LAN port → LAN. Phone jack → G.hn, with the included RJ11 cable.
About 1 minuteAdapter B in another room
Phone jack → G.hn. Your PC, console, TV or access point → LAN.
About 1 minutePower on and check
Within about 60 seconds G.hn lights up — green means the best speed. POWER, G.hn and LAN on: you’re online.
About 1 minuteSecure it (recommended)
Hold PAIR for 3 seconds on A, then within 2 minutes on B. Solid green PAIR = AES-128 encrypted.
10 secondsStill have a landline?
Plug your phone or DECT base into the adapter’s PHONE port. The built-in filter keeps voice and data apart — no splitter needed.
DSL on the line?
Connect the adapters to a spare pair, never the DSL pair. On VDSL lines, including UK FTTC, set the same notch on both adapters in the web page.
For the best speed
Plug straight into the wall: no extension cords, splitters, micro-filters or surge filters between jack and adapter. Keep the RJ11 cable short.
A complete two-room kit
- 2×KB-T3-01 adapters
- 2×Power adapters, 5 V 1 A
- 2×USB-A to DC cables, for a USB 3.0 port
- 2×4-wire RJ11 phone cables (1 or 2 pairs)
- 2×Ethernet cables
- 2×BT to RJ11 adaptersUK version
- 1×Quick start guide
Before you order
- A phone jack in each room, linked by the same phone wiring
- One pair of wires without DSL internet — an analog phone on it is fine
- A power outlet or free USB 3.0 port near each adapter
- Your router or fiber ONT with a free Ethernet port
KB-T3-01 technical specifications
| Model | KB-T3-01 G.hn Wave 2 phone line adapter (sold as a 2-pack) |
|---|---|
| Technology | ITU-T G.hn Wave 2 (G.9960 / G.9961) over telephone wiring |
| Data rate | Up to 1.6 Gbps on 2 pairs (MIMO), up to 1.54 Gbps on 1 pair* |
| G.hn profiles | PHONE 200MHz (default): 1 pair, 2–200 MHz · PHONE 100MHz: 1 pair, 2–100 MHz · PHONE 100 MHz with MIMO: 2 pairs, 2 × 2–100 MHz |
| Ethernet port | 1 × RJ45 2.5GbE, auto-negotiation 2.5G / 1G / 100M / 10M |
| G.hn port | 1 × RJ11: pair 1 on pins 3/4, pair 2 on pins 2/5 (MIMO) |
| PHONE port | 1 × RJ11, analog voice pass-through with built-in filter |
| Wall sockets | RJ11/RJ14 jacks and RJ45 data sockets with the supplied cable · UK BT sockets with the BT adapter (UK version) |
| Network | Up to 16 adapters, multipoint · 128-bit AES encryption with PAIR |
| Features | IGMP snooping, 802.1Q VLAN pass-through, DHCP client or static IP, VDSL notching, built-in web page |
| Buttons and LEDs | PAIR, Reset (underside) · POWER, G.hn, LAN, PAIR |
| Power | 5 V DC, 1 A (5 W max): power adapter, or USB 3.0 port with the USB-A to DC cable |
| Operating environment | 0–40 °C (32–104 °F), 10–85% RH non-condensing |
| Storage environment | −20–85 °C (−4–185 °F), 5–90% RH non-condensing |
| Certifications | FCC Part 15, CE |
| Warranty | 1-year limited hardware warranty |
* Maximum throughput measured in our lab. Real-world speed depends on the length and condition of your phone wiring and is shared by all adapters on the network. “2.5GbE” is the Ethernet port standard, not the speed over the phone line.
Questions, answered straight
Do I need an active phone service or landline?
No. The adapters use the copper wiring inside your home, not the phone company’s service. After a switch to fiber, cable or 5G those jacks usually sit unused — the ideal setup.
Will my landline keep working?
Yes. Plug your phone, fax or DECT base into the adapter’s PHONE port. The built-in filter separates voice and data on the same pair, so you don’t need a splitter.
I have DSL internet. Can I still use it?
Yes, as long as G.hn runs on a different pair from the DSL line — for example a spare pair of your in-home phone cable. G.hn and DSL use overlapping frequencies, so they can never share a pair. On VDSL, including UK FTTC, set the notch in the web page if your broadband becomes unstable.
How fast will it be in my home?
Up to 1.6 Gbps with two pairs and up to 1.54 Gbps with one pair, measured in our lab. Real-world speed depends on the length and condition of your wiring. The G.hn LED shows it at a glance (green: over 300 Mbps) and the web page shows the exact link rate.
What does the 2.5GbE port mean for speed?
It means the port is never the bottleneck. A 1GbE port would cap the phone-line link at 1 Gbps; the 2.5GbE port passes up to 1.6 Gbps on to a 2.5G device. Devices with a 1GbE port still connect, at up to 1 Gbps.
Which wall sockets can I use?
RJ11 and RJ14 phone jacks, as used in the US and Canada, and RJ45 data sockets take the included cable directly. UK BT master and extension sockets work with the BT adapters in the UK version. For other sockets, use an adapter to RJ11 or a terminal block.
Do I need two adapters?
Yes: one next to your router and one in each room you want to connect. That’s why the KB-T3-01 ships as a 2-pack. You can add more later — up to 16 on the same wiring.
Can I use it between my fiber ONT and my router?
Yes. Two adapters carry the fiber connection over the phone line to a router in another room. Because they then sit before your router, give both adapters a static IP address first, as the user guide describes.
Can I power it from my router’s USB port?
Yes. Use the included USB-A to DC cable on a USB 3.0 port of your router, PC or TV — or the included 5 V power adapter.
Does it work with mesh Wi-Fi?
Yes. Connect your mesh node’s Ethernet port to adapter B for a wired backhaul. Most mesh systems switch to it automatically, and the far end of the house gets strong, steady Wi-Fi.
Is my network private in an apartment building?
Phone wiring is sometimes shared between apartments. Hold PAIR on each adapter to encrypt your network with 128-bit AES, so only your adapters can join it.
My home has coax TV outlets instead of phone jacks.
Then choose the KB-G3-01 G.hn coax adapter, or the KB-M3-02 MoCA adapter if your internet comes from a cable company. They work the same way over coaxial cable.
What warranty and support do I get?
A 1-year limited hardware warranty and direct support from the Kiwee team at info@kiwee-broadband.com. Include your model number and the color of each LED, and we’ll get you sorted fast.
Help from the people who build it
KB-T3-01 user guide
Installation, wiring (daisy chain, star, MIMO), pairing, web settings, DSL coexistence, fiber ONT bridge, IPTV and troubleshooting. Free PDF in nine languages — the same guide the QR code in the box opens.
Open the user guidesTalk to a person
Wiring questions, socket types, link speeds — answered by the people who design the adapters, not a script.
info@kiwee-broadband.comWarranty
1-year limited hardware warranty from the date of purchase. Mention your model number and LED colors when you write — it speeds things up.
Read the FAQWire the far room tonight — with the phone jacks you already have.
Up to 1.6 Gbps over your phone line, a 2.5GbE port at each end and a landline that keeps working. Plug in, power on, done.
Designed by Kiwee Broadband, the home-networking specialist behind the first dual-2.5GbE MoCA 2.5 adapter.