TP-Link Kasa HS103P3 V3.8 (US, 3-pack) review

Document-based assessment of the US Kasa HS103P3 V3.8 three-pack. This is not a hands-on review: I have not owned, installed, measured or electrically tested these plugs.

Three individual plugs, one older package route

The exact US catalog item 78797 is marked V3.80, while the selected product and support pages call the hardware V3.8. TP-Link's V3.8 package table and lifecycle entry identify the P3 as three HS103 plugs, and its product image depicts three separate bodies. Think of this as three one-outlet smart devices, not a single three-socket adapter. A rating applies to each plug; it is not multiplied across the package and does not authorize three appliances on one branch circuit.

The suffix and version matter. HS103P2 and HS103P4 are distinct routes, and later HS103 documents can describe different hardware. Do not accept a seller listing that simply says “Kasa mini plug” as proof that the box contains this exact V3.8 three-pack. The product category's appearance beside newer models does not erase TP-Link's lifecycle record: this edition is earlier and its dates do not establish current retail stock, condition, warranty or support availability.

Simple Kasa Wi-Fi routines, not a Matter feature set

The V3.8 documentation describes a 2.4 GHz 802.11 b/g/n Wi-Fi setup through the Kasa Smart app. Alexa, Google Assistant and SmartThings are listed integration routes. Kasa schedules, a countdown timer and randomized Away Mode are documented in the version-linked materials. Away Mode is a routine that varies switching times; it is not a monitored security product or a guarantee that a home appears occupied.

The checked V3.8 evidence does not establish Matter certification or Apple Home support, so those should not be inferred from voice-assistant compatibility. Nor do the cited instructions make a definite promise about local control after internet service drops. If a household needs a platform-specific feature or offline behavior, treat the absence of a documented route as an unresolved requirement rather than assuming it will work.

Electrical limits: the important missing fields

The exact V3.8 datasheet specifies 100–120 V and a 15 A maximum current. It does not state a separate 120 V watt ceiling, define a supported load class, give a motor horsepower limit or publish a plug-body dimension. These omissions matter: multiplying 15 A by 120 V on your own is not the same as a manufacturer rating for every appliance, and a general current figure does not settle motor startup or a device maker's switching restrictions.

TP-Link's user guide includes examples of household appliances, but examples are not a new electrical specification. Check the appliance nameplate and instructions, compare current with the exact plug's published maximum and stop if the appliance type needs a rating this record cannot confirm. For a motor, compressor, heater or safety-related load, ask the appliance maker or a qualified electrician when the suitability is unclear. The finder leaves unknown watt and motor fields unmatched rather than converting one number into another.

TP-Link says the device is for indoor use. The datasheet's measurements for a P3 package describe the retail box, not each plug body, so they are not useful as an outlet-fit dimension. Measure the actual outlet, faceplate, neighboring plug and cord path; the documentation does not promise clearance in every duplex installation.

What the three-pack is best for

This package is most relevant when a buyer wants several separate indoor Kasa switching points and values the documented app routines. It is a weaker choice if exact energy reports, Matter/Apple Home, a confirmed watt limit, a motor ceiling, plug-body measurements or current support status are essential. The three-unit count can make sense for multiple rooms, but it also means verifying three installation spots and three intended appliance loads.

Before choosing a seller, compare the package label with HS103P3 V3.8/V3.80, ask for the hardware version and confirm all three units are included. Review the dated lifecycle entry and the seller's return and warranty terms independently. Then compare each appliance's voltage and current against its own instructions. Do not treat a historic lifecycle row, catalog card, or an empty dated recall-name query as a guarantee about a specific offer.

Bottom line

The HS103P3 V3.8 offers three independent indoor Kasa plugs with documented schedules, timer and Away Mode. Its 15 A figure is the only published load ceiling in the exact-version record; wattage, motor limit and body size remain unknown. That makes precise version checking and conservative load selection more important than the attractive package count. Read TP-Link's HS103P3 V3.8 page, the V3.80 support downloads and the US lifecycle list before making a version-specific decision.