Our take
Panasonic NN-ST66KW is a white 1.2-cu.-ft. inverter countertop microwave with sensor cook/reheat, Turbo Defrost and 1,200-W output; its 1,480-W consumption is separate, and its trim fit and tray diameter are unknown.
Consider NN-ST66KW if you want a 1.2-cu.-ft. inverter model with documented 1,200-W output and sensor cook/reheat. Keep its 1,480-W consumption and 12.4-A, 120-V/60-Hz supply in view for electrical planning. Use the manual's countertop clearances; do not assume the NN-ST67KS trim-kit instructions apply to this model..
If a confirmed trim kit, numeric tray diameter, current renewed condition or another capacity is essential, compare a model whose exact suffix-specific sources establish it.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Panasonic's manual documents Sensor Cook/Reheat and Turbo Defrost for this family.
- The 1,200-W cooking output is separate from 1,480-W consumption and 12.4-A supply.
- An exact-model catalog identifies a white 1.2-cu.-ft. inverter model.
What to weigh up
- The NN-ST67KS trim instructions do not verify a trim kit for NN-ST66KW.
- No numeric turntable diameter was established in the reviewed manual.
- The historical renewed ASIN does not verify a current exact model or offer.
The key details
| Model covered | NN-ST66KW |
|---|---|
| Capacity | NN-ST66KW exact model; white, 1.2-cu.-ft. inverter family per exact-model catalog |
| Microwave output | 1,200-W cooking output; 1,480-W consumption / 12.4 A |
| Cooking approach | 120 V / 60 Hz; stable countertop placement and clearance instructions |
| Installation options | Sensor Cook/Reheat and Turbo Defrost documented in the family manual |
| Finish and turntable | No exact NN-ST66KW tray diameter or trim-kit pairing assigned |
Performance figures are manufacturer claims. Source checked October 11, 2026. Regional models and included accessories can differ.
What the features mean for you
Keep NN-ST66KW distinct from NN-ST67 suffixes
Panasonic's family guide covers NN-ST66KW and multiple NN-ST67 models, but accessory directions can differ by suffix. The trim-kit discussion is specifically for NN-ST67KS. This review therefore identifies NN-ST66KW as its own model and does not apply the neighboring trim instructions to it. Before ordering accessories or planning a cabinet opening, compare the complete NN-ST66KW label with Panasonic's exact installation instructions. A shared family reference is not an exact compatibility statement; keep the trim field unknown until an NN-ST66KW instruction explicitly confirms a kit. This also prevents confusing the nearby NN-ST67KS instructions with this model.
Use the exact-model capacity and inverter designation
The exact-model catalog identifies NN-ST66KW as a white 1.2-cu.-ft. inverter microwave. Those details describe its cavity size and the named cooking technology. The manual's grouped family listing is not a reason to borrow capacity or accessory details from an NN-ST67 model; confirm the complete code on the product label. The 1.2-cu.-ft. figure is cavity volume, not a measurement of a platter's width or height. For square cookware or taller containers, check interior dimensions and rotating clearance on the exact unit; capacity alone cannot confirm that a dish fits. Keep the inverter designation as a separate feature description rather than treating it as a size or tray specification.
Separate 1,200-W output from 1,480-W consumption
Panasonic specifies 1,200 W cooking output and 1,480 W power consumption, with 12.4 A at 120 V/60 Hz. Output is the relevant figure for cooking-power comparison; consumption and current matter when checking the electrical supply. Do not substitute one rating for the other. Before comparing models, read both cooking output and input or consumption from their cited specifications instead of estimating electrical draw from output. Check the actual appliance nameplate and installation instructions when confirming the circuit and receptacle for the unit.
Sensor reheat and cook are documented functions
The family manual identifies Sensor Cook and Reheat, and its operating instructions explain sensor-based reheating and cooking. Turbo Defrost is also documented, but defrosting and sensor programs are distinct features. Use the function names in the NN-ST66KW guide to select appropriate food and quantities. Match a sensor program to the food guidance in the manual rather than assuming one automatic choice fits every serving. Turbo Defrost remains a separate option with its own instructions.
Follow countertop clearances and household-use limits
Panasonic instructs users to put the microwave on a stable, flat surface with specified open space around it. The manual describes household use and says the appliance is not approved or tested for commercial use. This supports countertop placement and does not establish a foodservice-duty rating.
Check turntable fit and the exact renewed offer
The reviewed text specification table does not state a numeric turntable diameter, so measure cookware against the glass tray on the exact appliance. The old ASIN page could not be retrieved and does not prove that a current renewed listing matches NN-ST66KW. Confirm the model label, condition, included plate and finish before relying on a marketplace listing.
What else to compare
Before you buy
What cavity capacity is listed for NN-ST66KW?
An exact-model catalog identifies a 1.2-cu.-ft. model.
What are output and consumption ratings?
Panasonic lists 1,200-W cooking output and 1,480-W consumption at 120 V/60 Hz, 12.4 A.
Does the model have an inverter and sensor features?
The exact-model catalog identifies inverter technology; the family manual documents Sensor Cook/Reheat.
Is a trim kit verified for NN-ST66KW?
No. The manual's trim-kit section applies to NN-ST67KS, not NN-ST66KW.
What is the turntable diameter?
The reviewed manual text does not state a numeric diameter.
Is the historical renewed Amazon offer confirmed?
No. The exact ASIN page was unavailable, so the current model and condition are unverified.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Panasonic NN-ST66/NN-ST67 operating manual and exact-model catalog record ↗ — checked October 11, 2026.
- Panasonic manual explicitly covers NN-ST66KW and documents countertop clearances, household-only use, Sensor Cook/Reheat, Turbo Defrost, 120-V/60-Hz supply, 1,480-W consumption and 1,200-W output; trim-kit section is only for NN-ST67KS. ↗ — checked October 11, 2026.
- Exact-model NN-ST66KW manual catalog identifies 1.2-cu.-ft. capacity, 1,200 W and inverter; it is not an ASIN crosswalk. ↗ — checked October 5, 2026.
- Exact-model retailer search result identifies NN-ST66KW as a white 1.2-cu.-ft., 1,200-W inverter microwave; the page itself was not retrievable, so it is corroborative catalog evidence only. ↗ — checked October 5, 2026.
- Historical Amazon page returned an internal error; renewed condition and current exact offer remain unverified. ↗Paid link · We may earn a commission. — checked October 5, 2026.
The decision
Panasonic NN-ST66KW is a white 1.2-cu.-ft. inverter countertop microwave with sensor cook/reheat, Turbo Defrost and 1,200-W output; its 1,480-W consumption is separate, and its trim fit and tray diameter are unknown.
Is it the right fit?
Check the exact model and today’s offers on Amazon.