Kasa KP303 Smart Plug Power Strip
- 3 smart AC outlets, each controlled separately
- 2 USB ports for charging
- Wi-Fi app control, plus Alexa, Google Assistant and Cortana voice
- 125 V, 10.5 A rating
- Surge protection, joule rating not listed
- Type B 3-pin North American plug
- 10.24 x 2.5 inches, 1.1 lb
- iOS 10 or Android 5.0+ for the Kasa app
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A tidy way to put lamps, chargers and small electronics on app and voice control from one strip. Surge protection lacks a published rating, so treat it as a convenience strip rather than serious protection.
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ASIN: B083JKSSR5Model: KP303Category: Power Strips
Overview
Kasa builds this smart power strip around Wi-Fi outlets that each switch on and off on their own from the Kasa app or by voice assistant, while USB ports charge other devices. Surge protection and a manual on and off switch are built in.
Separate control of each outlet lets one strip switch a lamp, a fan and a speaker independently by app or voice, with USB charging on the side. Against that, the surge rating is not published, and one current rating caps what can run at once.
Who it's for
Suited to a desk, nightstand or entertainment shelf with a few gadgets that should turn on and off remotely. Setups full of high-draw appliances, or gear that needs rated surge protection, call for a different strip.
Pros and cons
- Each AC outlet controlled separately
- USB ports for extra charging
- Works with Alexa, Google Assistant, Cortana
- Surge protection built in
- Surge joule rating not listed
- Only three smart AC outlets
- Needs Wi-Fi and the Kasa app
- 10.5 A limit for high-draw appliances
Performance notes
Smart control runs over home Wi-Fi through the Kasa app, so responsiveness depends on the router signal where the strip is placed. Every load plugged in shares one current rating, so heaters and other high-draw appliances use up capacity fast. Surge protection is present, but with no absorption rating given its depth cannot be judged.
Specifications
| Brand | kasa |
|---|---|
| Model | KP303 |
| Dimensions & fit | |
| Item weight | 1.1 pounds |
| Item Dimensions L x W | 10.2 × 2.5 inches |
| Power & efficiency | |
| Amperage | 10.5 ampslower than 63% of 20 power strips |
| Power Plug Type | Type B - 3 pin (North American) |
| Voltage | 125 volts |
| Construction & materials | |
| Enclosure Material | Plastic |
| Color | White |
| Compatibility & installation | |
| Connectivity technology | Wi-Fi |
| Warranty & support | |
| Warranty Description | 2 years |
| Other details | |
| Total Usb Ports | 2 |
| Shape | Rectangle |
| Control Type | App, Voice |
| App requirements | iOS 10 or Android 5.0 or higher |
Closest rivals on specs
Frequently asked questions
Is the Kasa KP303 a heavy-duty surge protector?
Surge protection is listed, but no joule rating is given. The strip is rated 125 V and 10.5 A, so add up the draw of high-wattage appliances before plugging them in together.
Are the USB ports on the Kasa KP303 smart controlled?
The listing describes independent control for the 3 AC outlets only. The 2 USB ports are described as charging ports.
Which phones can run the Kasa app for the KP303?
The Kasa app needs iOS 10 or Android 5.0 or higher.