Key takeaways
- They do not multiply range by four. Range depends mostly on transmit power limits, the band used, walls and the client device. Extra antennas help with signal consistency and beamforming, not raw distance.
- They do not guarantee more speed than a three-antenna router. Some three-antenna AC1750 routers, for instance, use 3×3 streams per band, which can be faster for 3×3 clients than a four-antenna AC1200 model.
- They are not always all external. Some TP-Link models add an internal antenna on top of the visible ones, so the external count is not a precise guide to the radio design.
A TP-Link 4 antenna router is usually a dual-band model with two antennas serving each band (2×2 MIMO), which is the right fit for most apartments and small to medium homes, but the number of antennas alone does not tell you how fast or how far the router reaches. Popular four-antenna models span everything from older Wi-Fi 5 AC1200 routers such as the Archer C6 to Wi-Fi 6 models like the Archer AX21, AX23 and AX55, and the Wi-Fi standard and speed class matter far more than the antenna count.
Our top picks
As an Amazon Associate we earn from qualifying purchases at no extra cost to you. Ratings are shown as listed on Amazon.
What the Four Antennas Actually Do
Each antenna corresponds to a radio chain that can send and receive a spatial stream. More streams let the router talk to devices with multiple antennas faster, and let it serve several devices at once with MU-MIMO. On a typical four-antenna TP-Link dual-band router, the layout is effectively two streams on 2.4 GHz and two streams on 5 GHz. That matches what most phones and laptops support: the majority of client devices have two antennas, so a 2×2 router can deliver their full speed.
What four antennas do not do:
- They do not multiply range by four. Range depends mostly on transmit power limits, the band used, walls and the client device. Extra antennas help with signal consistency and beamforming, not raw distance.
- They do not guarantee more speed than a three-antenna router. Some three-antenna AC1750 routers, for instance, use 3×3 streams per band, which can be faster for 3×3 clients than a four-antenna AC1200 model.
- They are not always all external. Some TP-Link models add an internal antenna on top of the visible ones, so the external count is not a precise guide to the radio design.
Common TP-Link Four-Antenna Routers Compared
The speed class in a model name is the sum of the maximum link rates of each band. Real-world throughput to a single device is typically 40 to 60 percent of the per-band link rate, and lower through walls.
| Model | Wi-Fi standard | Speed class | 2.4 GHz max link | 5 GHz max link | Typical price range |
|---|---|---|---|---|---|
| Archer C6 | Wi-Fi 5 | AC1200 | 300 Mbps | 867 Mbps | $35 to $60 |
| Archer C80 | Wi-Fi 5 | AC1900 | 600 Mbps | 1300 Mbps | $55 to $85 |
| Archer AX10 | Wi-Fi 6 | AX1500 | 300 Mbps | 1201 Mbps | $50 to $75 |
| Archer AX21 / AX23 | Wi-Fi 6 | AX1800 | 574 Mbps | 1201 Mbps | $55 to $90 |
| Archer AX55 | Wi-Fi 6 | AX3000 | 574 Mbps | 2402 Mbps | $80 to $130 |
All of these use gigabit Ethernet ports and the TP-Link Tether app for setup. The AX55’s large jump on 5 GHz comes from 160 MHz channel support, which only helps when your laptop or phone also supports 160 MHz and you sit reasonably close to the router.
Worked Example: Is a Four-Antenna Router Enough for Your Plan?
Suppose you pay for a 500 Mbps internet plan and your laptop is a typical 2×2 Wi-Fi 6 device.
- Archer C6 (Wi-Fi 5, 867 Mbps on 5 GHz): realistic throughput in the same room is roughly 350 to 500 Mbps, dropping to around 150 to 300 Mbps a couple of rooms away. You will not consistently see the full 500 Mbps.
- Archer AX21 (Wi-Fi 6, 1201 Mbps on 5 GHz): realistic throughput close by is roughly 500 to 700 Mbps, so it can saturate the 500 Mbps plan near the router and stay well above 250 Mbps a few rooms away.
- Archer AX55 (Wi-Fi 6, 2402 Mbps with 160 MHz): close by, a 160 MHz-capable laptop can exceed 900 Mbps, but the gigabit WAN port caps your internet at about 940 Mbps anyway. Worth it for plans of 1 Gbps or for fast local file transfers.
The takeaway: for plans up to about 300 Mbps, a Wi-Fi 5 four-antenna model is adequate. For 300 Mbps to 1 Gbps, choose a Wi-Fi 6 model. For multi-gig plans, you need a router with a 2.5 Gbps port, which these entry and midrange models do not have.
How to Position the Antennas
Antenna orientation makes a measurable difference, especially for devices on other floors. Most external router antennas are omnidirectional dipoles: they radiate outward in a horizontal ring around the antenna and weakest straight off the tip.
- Single floor, devices spread around you: point all four antennas straight up. The signal spreads horizontally across the floor.
- Two floors, router on the lower one: set two antennas vertical and angle the other two outward at about 45 degrees, or lay them horizontal. This sends part of the signal upward.
- Mixed devices (laptops, phones held at angles): alternate vertical and horizontal antennas. Client antennas are oriented in many directions, and matching polarization improves signal strength.
- Raise the router: on a shelf at roughly 3 to 6 feet, not on the floor or inside a cabinet. Keep it a few feet away from microwaves, metal surfaces and aquariums.
Because the radios assign antennas to specific bands internally, moving one antenna can affect one band more than the other. If one room has a weak 5 GHz signal, try changing a single antenna angle at a time and recheck the signal.
Which Model Fits Your Home
| Your situation | Suggested four-antenna model | Why |
|---|---|---|
| Studio or one-bedroom, internet up to 300 Mbps | Archer C6 | Cheap, gigabit ports, enough for streaming and calls |
| Older devices, mostly Wi-Fi 5 laptops | Archer C80 | Stronger Wi-Fi 5 class without paying for Wi-Fi 6 |
| Apartment with newer phones and laptops | Archer AX21 or AX23 | Wi-Fi 6 efficiency with many devices; OneMesh support for adding extenders |
| Gigabit plan, gaming or large downloads | Archer AX55 | 160 MHz channels and AX3000 class |
| House over about 2,000 sq ft or multiple floors | Consider a mesh system instead | One router, regardless of antennas, struggles through many walls |
Ownership Realities
- Firmware: enable automatic updates in the Tether app or web interface. Router firmware fixes security issues and stability bugs.
- Heat: these compact plastic routers run warm. Leave space around the vents and avoid stacking them on a modem.
- Fixed antennas: on most of these models the antennas are attached and cannot be swapped for higher-gain aftermarket ones. Placement is your main tuning tool.
- Lifespan: a router typically gives four to six years of useful service before standards, security support or performance push an upgrade. If buying in 2026, Wi-Fi 6 is the sensible minimum for a router you expect to keep that long.
