Our take
Sharp R-299T(S) is a verified 22-L, 800-W regional countertop model with a 272-mm tray. Voltage must be checked on its rating plate, and its unconfirmed voltage and frequency keep it out of the standard US-outlet path; finish and installation options remain uncertain.
This entry is retained for model coverage, but it does not meet the standard US-outlet path because exact-model voltage and frequency remain unverified. Consider it only where its rating plate and local power supply are compatible. Confirm the finish, installation instructions and current exact model before ordering; the metric 22-L cavity and 272-mm tray are the source-native facts..
For US shopping, choose a model whose exact rating label and documentation confirm compatibility with the local supply. If you need a trim-kit path, sensor cooking or commercial duty, compare only models with those exact facts documented.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Sharp identifies this exact regional model as a 22-L basic-solo microwave with 800 W output.
- The manual documents a 272-mm glass turntable, touch controls, instant cook and named menus.
- The source-native capacity and exact code are documented without relying on the title's uncertain finish or voltage.
What to weigh up
- The unit rating label must be checked because the manual does not confirm its voltage or frequency.
- Finish evidence conflicts, and the historical Amazon page does not verify a current exact offer.
- Sensor cooking, trim-kit fit and commercial-duty classification are unconfirmed.
The key details
| Model covered | R-299T(S) |
|---|---|
| Capacity | Sharp's regional catalogue identifies R-299T(S) as a 22-L basic-solo countertop microwave with 800-W output |
| Microwave output | The official manual lists a 272-mm glass turntable, touch controls, instant-cook and menu functions |
| Cooking approach | Manual says mains voltage must be checked on the exact unit rating label; the title's 220–240-V claim is unverified |
| Installation options | Exact-model finish is inconsistent across sources; trim kit, sensor cooking and commercial duty remain unknown |
| Finish and turntable | Singapore model identity is retained; unknown mains compatibility excludes it from the standard US-supply path; Amazon ASIN B007N9DR42 did not verify a current offer |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
What the features mean for you
A real regional model with unconfirmed US supply
Sharp's Singapore catalogue lists the exact R-299T(S) as a basic-solo microwave under kitchen appliances. Its official operation manual names the same code and describes freestanding operation, so the product is genuinely within the countertop-microwave category. The reviewed sources do not establish that the particular unit is suitable for US mains. For this finder entry, mainsCompatibility remains null because the exact sources do not establish the unit's voltage or frequency, so it does not meet the standard 120 V / 60 Hz outlet requirement. The Singapore origin stays explicit; the US finder market context does not certify electrical suitability. This preserves the model evidence without pretending that category membership alone proves electrical compatibility. Check the rating plate on any specific unit before connecting it.
Keep the source-native 22-L capacity and 800-W output
The manual gives R-299T(S) a 22-L capacity and 800-W microwave output. Liters are retained as the capacity figure in the review because the site profile expects cubic feet and converting this regional model into a comparable value would add a derived number. The output field uses the manual's explicit 800-W figure. Compare the exact manual and the dimensions against the cookware you use; a capacity label does not guarantee that every dish fits the opening. The frozen Amazon title repeats a voltage and finish clue, but neither is accepted as proof. This profile intentionally has no converted cubic-foot capacity so that unsupported precision cannot affect US matching.
Read the turntable and controls from the exact manual
The R-299T(S) manual lists a 272-mm glass turntable, which is about 10.7 inches after conversion, as well as touch controls, instant cook and named auto-cook/reheat menu functions. The profile carries 10.7 in. for the tray and records the manual's measurement as its source. Menu functions do not by themselves establish humidity-sensor cooking, so sensorCooking remains unknown. Use the actual plate to check dishes that approach the turntable edge and allow enough clearance for rotation. A rounded conversion gives a practical comparison only; the original 272-mm measurement remains the source fact. The code is regional, so check both tray fit and electrical rating on the actual unit.
Do not assume the title's 220–240-V statement
The frozen historical title says 220–240 V, but Sharp's exact manual directs users to read the line-voltage rating from the unit label. That explicit manual instruction takes precedence over the old title for an exact model's electrical configuration. This entry therefore does not assert a voltage or describe the unit as compatible with US outlets. MainsCompatibility stays null because no exact voltage or frequency is confirmed, so the model does not meet the standard US outlet requirement. If considering the model in another market, check the rating label, frequency, plug, circuit and local safety requirements before purchase. Do not use a plug adapter to overcome a voltage mismatch; confirm the full electrical supply with qualified guidance for the exact unit.
Finish, trim and duty classification remain unresolved
The frozen title calls the exterior stainless, but the exact regional model's reviewed finish evidence is inconsistent, so the product name does not promise a stainless finish. The official catalogue and manual do not establish a matching trim kit, sensor-cooking mode or commercial-duty classification. Record those attributes as unknown rather than treating absent evidence as a negative answer. The manual's solo/basic classification distinguishes this model from a combination grill microwave, but it does not establish a foodservice duty rating. Do not plan a built-in surround or shared commercial operation unless model-specific documents approve those uses. The source-native regional product facts and the uncertain variant facts remain separated in this profile.
Use the tagged search cautiously
A Desertcart page displays both R-299T(S) and historical ASIN B007N9DR42, but that third-party record does not establish a current Amazon offer. Amazon's historical ASIN page returned an internal error. The affiliate destination is a tagged exact-model search, not a direct link, and any result must be checked for the complete regional model code and electrical rating. No current price, stock, sales or buyer-review claim is made. This review is based on Sharp's regional catalogue and manual rather than hands-on tests. For a US buyer selecting the standard 120 V / 60 Hz outlet path, the unconfirmed supply prevents this model from qualifying until exact documentation is available.
What else to compare
Before you buy
What capacity and output does Sharp list?
The exact R-299T(S) manual lists 22 L capacity and 800 W microwave output; this entry keeps capacity in its source-native liter unit.
How large is the glass turntable?
The manual gives 272 mm, approximately 10.7 inches. Measure dishes against the actual tray and leave rotation clearance.
Can this model be used with a standard US outlet?
The manual says to check the unit rating label for mains voltage. US compatibility is unverified, so it does not meet the standard 120 V / 60 Hz outlet requirement; check the exact unit rating label before purchase.
Is the stainless finish confirmed?
No. The old title says stainless, but exact-model finish evidence is inconsistent and the product name does not promise that finish.
Does it support a trim kit or commercial use?
The reviewed Sharp catalogue and manual do not establish a trim kit or exact commercial-duty rating; both fields remain unknown.
Does ASIN B007N9DR42 prove a current Amazon listing?
No. The historical Amazon page returned an internal error, and the third-party cross-reference does not prove a current exact Amazon offer.
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.
- Sharp Singapore R-299T(S) product catalogue and official operation manual ↗ — checked October 5, 2026.
- Sharp Singapore catalogue: lines 90–98 place the product under kitchen appliances / microwave oven / basic-solo; lines 706–716 list exact model R-299T(S), 22-L capacity and named menu functions. ↗ — checked October 5, 2026.
- Sharp R-299T(S) official operation manual, printed/PDF p. 23: exact model, 800-W output, 22-L capacity, 272-mm turntable and outer dimensions; the mains-voltage field directs the user to the unit rating label. ↗ — checked October 5, 2026.
- Tolay Electrical exact-model page: lines 102–136 identifies R-299T(S), solo type, 22 L, 800 W, touch controls, menus, turntable and dimensions; its finish and voltage data are not relied on. ↗ — checked October 5, 2026.
- Historical Amazon page returned an internal error; Desertcart's third-party ASIN display is not used as a current Amazon identity proof. ↗Paid link · We may earn a commission. — checked October 5, 2026.
The decision
Sharp R-299T(S) is a verified 22-L, 800-W regional countertop model with a 272-mm tray. Voltage must be checked on its rating plate, and its unconfirmed voltage and frequency keep it out of the standard US-outlet path; finish and installation options remain uncertain.
Is it the right fit?
Check the exact model and today’s offers on Amazon.