TP-Link Sells 13 Kasa Smart Plugs; Two Speak Matter

TP-Link’s US site lists 13 current Kasa smart plugs: five indoor plugs, five outdoor plugs, two power strips and an in-wall outlet. Two of them, the KP125M (affiliate link to Amazon, opens in a new tab) indoor plug and the EP40M (affiliate link to Amazon, opens in a new tab) outdoor plug, are Matter-certified; four monitor energy use; and all but the KP405 outdoor dimmer are rated for 15 amps.

Kasa reuses names, which is where the confusion comes from: five different models in its US catalogue are called “Kasa Smart Wi-Fi Outdoor Plug”, and four are “Kasa Smart Wi-Fi Plug Slim with Energy Monitoring”. The model number is the thing to match. Specs below are from Kasa’s own US product pages; prices are B&H Photo’s list prices on 1 November 2026, because TP-Link’s own US store did not list Kasa plugs that day.

All 13 side by side

Model	Type	Outlets	Max load	Matter	Energy monitoring	B&H list price
EP10	Indoor mini	1	15 A, 1,800 W	No	No	$9.99
HS103	Indoor mini	1	15 A, 1,800 W	No	No	$17.99 (2-pack)
EP25	Indoor slim	1	15 A, 1,800 W	No	Yes	$24.99 (2-pack)
KP115	Indoor slim	1	15 A, 1,800 W	No	Yes	$22.99
KP125M	Indoor slim	1	15 A, 1,800 W	Yes	Yes	$29.99 (2-pack)
EP40	Outdoor, IP64	2	15 A, 1,875 W total	No	No	$24.99
EP40A	Outdoor, IP64	2	15 A, 1,875 W total	No	No	$25.99
EP40M	Outdoor, IP64	2	15 A, 1,875 W total	Yes	No	$29.99
KP401	Outdoor, IP64	1	15 A	No	No	$16.99
KP405	Outdoor dimmer, IP64	1	300 W incandescent, 150 W LED	No	No	$22.99
HS300	Power strip, surge protected	6 + 3 USB	15 A, 1,875 W total	No	Yes	$42.99
KP303	Power strip, surge protected	3 + 2 USB	15 A, 1,875 W total	No	No	$29.99
KP200	In-wall outlet	2	15 A, 1,875 W total	No	No	$24.99

Counting the rows: five indoor plugs, five outdoor, two strips, one in-wall outlet. Matter appears on two product pages; energy monitoring on four. Where B&H showed a sale, the table gives the struck-through price.

The indoor plugs: mini or slim, with or without monitoring

The EP10 and HS103 are Kasa’s Plug Minis: on and off, schedules, timers, and Alexa or Google Assistant for voice. Kasa’s HS103 page gives 15 A “for the new version”, so an older HS103 already in a drawer may carry a lower rating; the label says which.

The three slim plugs, EP25, KP115 and KP125M, add energy monitoring: real-time and historical power use in the Kasa app. Kasa gives all three the same 66.5 × 38 × 40 mm body, and its EP25 and KP125M pages say two fit side by side on one outlet. What separates them is the platform.

• KP125M: Matter-certified. Kasa says it can be set up by scanning its code in the Alexa, Google Home or Apple Home app, as well as in the Kasa app.
• EP25: TP-Link’s US listing names it “Apple HomeKit Supported”; Kasa’s own EP25 page names Alexa, Google Assistant and SmartThings for voice.
• KP115: Alexa, Google Assistant and SmartThings on its page; no HomeKit or Matter mentioned.

The KP125M page also describes a power threshold that switches the plug off when a device draws more than you set, and estimated bills from your electricity rate, both under a footnote saying the new version of energy monitoring “will be available soon”. What else to check in any plug, including what not to put on one, is in what matters when buying a smart plug.

The outdoor plugs: three twins, a single and a dimmer

The EP40, EP40A and EP40M share a body: two outlets, 15 A and 1,875 W in total, IP64, and a Wi-Fi reach Kasa puts at up to 300 feet in open areas for the EP40 and EP40A. The difference is the platform: the EP40M is Matter-certified, and Kasa says the EP40A supports the Apple Home app and Siri. Kasa’s outdoor plug pages say they must go into a GFCI outlet when used outdoors or in wet locations.

The KP401 is a single-outlet outdoor plug on a 6-inch cable, rated 15 A. The KP405 looks the same but dims: Kasa rates it for 300 W of incandescent or 150 W of LED lighting, a rating given only in lighting terms.

The strips and the wall outlet

The HS300 (affiliate link to Amazon, opens in a new tab) is the one strip with energy monitoring, per outlet in the Kasa app, plus six outlets, three USB ports and surge protection. The KP303 has three outlets, two USB ports and surge protection, without monitoring. Both are rated 15 A and 1,875 W in total, shared across the strip.

The KP200 replaces a wall outlet: two sockets, each controllable separately, and Kasa says it needs a neutral wire in the box. That makes it an electrical install, not a plug-in.

Kasa and Tapo: what TP-Link says

TP-Link sells smart plugs under both names. Its own FAQ says “Tapo and Kasa are both TP-Link smart home brands”, that most Kasa devices can be managed from the Tapo app once both apps use the same TP-Link ID, and that it “continues to expand our Kasa ecosystem”. The Kasa KE100 and KE110 are its stated exceptions; neither is a plug. Kasa Care and Tapo Care subscriptions stay separate.

Assistants, Matter and the internet going down

The Kasa plugs join 2.4 GHz Wi-Fi and are set up in the Kasa app, with Alexa or Google Assistant named for voice on most pages. A Matter plug can also be added from another platform’s own app: Kasa names the Alexa, Google Home and Apple Home apps for the KP125M. Matter over Wi-Fi, which these two Wi-Fi plugs use, needs no Thread border router; how Matter, Thread and Zigbee fit together has the rest. Whether a plug keeps working when your connection drops depends on whether it is controlled locally, and what still works in a smart home during an internet outage shows how to find out in two minutes.

Who each one suits, by the specs

• Lamps and small appliances on a schedule: the EP10 or HS103.
• Watching what an appliance costs to run: the KP115, EP25 or KP125M, or the HS300 for a desk of devices.
• A Matter setup in Apple Home, Google Home or Alexa: the KP125M indoors, the EP40M outside.
• Holiday or patio lights: the EP40 family for two circuits, the KP401 for one, the KP405 to dim them.
• A permanent smart socket: the KP200, if the box has a neutral wire.

Questions people ask

Which Kasa smart plugs work with Matter?

The KP125M indoor plug and the EP40M outdoor plug. Kasa says the KP125M can be set up from the Alexa, Google Home or Apple Home app by scanning its Matter code. None of the other 11 product pages we read mentions Matter.

What is the difference between Kasa KP125M, KP115 and EP25?

All three are slim single plugs with energy monitoring and a 15 A rating. The KP125M is Matter-certified. TP-Link lists the EP25 as Apple HomeKit supported. The KP115 page names Alexa, Google Assistant and SmartThings.

Which Kasa smart plug works with Apple Home?

Kasa names the Apple Home app for setting up the Matter-certified KP125M; the EP40M outdoor plug is also Matter. Without Matter, Kasa’s EP40A page says it supports the Apple Home app and Siri, and TP-Link’s listing names the EP25 as Apple HomeKit supported.

Can a Kasa smart plug handle 15 amps?

Kasa rates 12 of the 13 at 15 A: the indoor plugs at 1,800 W, and the EP40 family, power strips and in-wall outlet at 1,875 W in total. The KP405 outdoor dimmer is rated for 300 W of incandescent or 150 W of LED lighting.

What is the difference between Kasa and Tapo?

TP-Link calls both its own smart home brands. It says most Kasa devices can be added to the Tapo app with the same TP-Link ID, and that Kasa and Tapo subscriptions are separate. It also says it continues to expand the Kasa range.

Does Kasa work with 5 GHz Wi-Fi?

The Kasa plug pages we read give 2.4 GHz Wi-Fi, 802.11b/g/n, as the requirement, and none of those pages lists 5 GHz. Your router needs a 2.4 GHz network for setup.