Our take
Magic Chef MCM990ST is a 0.9-cu.-ft. countertop microwave with a stainless front, 900-W output, ten power levels and grounded 120-V/60-Hz supply. Its 1,350-W input is separate; sources conflict on preset count, while sensor, tray size, trim and duty class remain unknown.
Consider MCM990ST if its stainless-front/silver-cabinet finish, 0.9-cu.-ft. size and 900-W output fit your counter and cookware. The manual gives useful installation details—grounded 120-V/60-Hz supply and 1,350-W input—and ten power levels with weight/time defrost. Check the actual tray size and do not count on a specific menu total or sensor feature until an exact source resolves those unknowns..
If you require a settled preset count, sensor cooking, a measured tray diameter, verified trim compatibility or commercial-duty classification, choose an exact model whose sources document those points. Check the actual stainless-front/silver-cabinet finish and follow the grounded-supply instructions.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The exact MCM990ST is a countertop model with a stainless front and silver cabinet, not an all-stainless exterior claim.
- Its manual lists 0.9-cu.-ft. capacity, 900-W output, separate 1,350-W input and grounded 120-V/60-Hz supply.
- Ten power levels, weight/time defrost and express start give it documented controls beyond timed cooking.
What to weigh up
- The exact product page lists eight preprogrammed modes while the 2019 manufacturer sheet lists six; the count remains unresolved.
- Sensor cooking and numeric glass-turntable diameter were not established.
- No exact trim kit or commercial-duty classification was found, and the historical Amazon offer is unverified.
The key details
| Model covered | MCM990ST |
|---|---|
| Capacity | Exact countertop model MCM990ST; stainless front with silver cabinet |
| Microwave output | 0.9-cu.-ft. cavity; 900-W microwave output separate from 1,350-W input |
| Cooking approach | Manual specifies grounded 120-V/60-Hz supply and ten power levels |
| Installation options | Digital controls, weight/time defrost, express start, push-button release and glass turntable |
| Finish and turntable | Official page and sheet disagree on preset-menu count; sensor, tray size, trim and duty class unknown |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
What the features mean for you
Match the stainless-front and silver-cabinet finish
MC Appliance identifies MCM990ST as stainless front with a silver cabinet. That is more precise than describing the entire exterior as stainless. Preserve the ST suffix and compare the panel and cabinet finish on a current item, since the frozen Amazon ASIN returned an error and does not prove a present exact listing or condition.
Use the cavity, output and controls as separate comparisons
The exact manual lists a 0.9-cu.-ft. cavity and 900-W microwave output, then separately specifies 1,350-W input. It also documents ten power levels, weight/time defrost and express start. Use the output for cooking-power comparison; input is electrical draw. Measure the actual glass turntable and your dish because the sources do not provide its diameter.
Plan around the documented grounded supply
The instruction manual specifies a grounded 120-V/60-Hz supply and lists 1,350 W input. Those electrical requirements are not interchangeable with the 900-W microwave output. Check the appliance's nameplate and the installation guidance before choosing a counter outlet, and leave the manual's ventilation clearances around the cabinet.
Keep sensor cooking distinct from preset menus
An auto-menu count or a weight-defrost control does not by itself establish a steam sensor. No exact MCM990ST document reviewed here names sensor cooking. Buyers who want sensor-based programs should compare an exact model page or manual that explicitly documents that function. Keep the sensor match unknown while using the model's confirmed power and defrost controls.
Leave tray diameter, trim and duty class open
The manufacturer's sheet confirms a rotating glass turntable but gives no numeric diameter. The reviewed model sources also do not identify an optional trim kit or classify the oven for commercial foodservice. Countertop installation does not establish cabinet trim compatibility. Measure the tray, retain airflow and select an explicitly rated model if a known trim fit or duty class is required.
What else to compare
Before you buy
What is MCM990ST's output and capacity?
Its exact manual lists 900-W microwave output and a 0.9-cu.-ft. cavity.
How much electrical input does it need?
The manual lists 1,350-W input and grounded 120-V/60-Hz supply.
What finish does MCM990ST have?
MC Appliance describes a stainless-steel front and a silver cabinet.
How many automatic menus are there?
The manufacturer page lists eight but the 2019 sheet says six, so the count is unresolved.
Does it have sensor cooking?
No exact sensor-cooking feature was established from the reviewed MCM990ST sources.
Is tray diameter or trim fit documented?
A glass turntable is listed, but no numeric diameter or exact trim kit was found.
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.
- MC Appliance exact-model MCM990ST product page and instruction manual ↗ — checked October 5, 2026.
- MC Appliance exact-model page identifies MCM990ST as a countertop 0.9-cu.-ft. microwave and lists stainless-front/silver-cabinet finish and controls; its eight-menu count conflicts with the older manufacturer sheet. ↗ — checked October 5, 2026.
- Exact-model Magic Chef manual identifies MCM990ST and specifies 120-V/60-Hz grounded supply, 1,350-W input, 900-W output and 0.9-cu.-ft. capacity. ↗ — checked October 5, 2026.
- MC Appliance's 2019 manufacturer sheet lists six preprogrammed modes, ten power levels, auto defrost, express cooking, rotating glass turntable and the model's size; its six-menu count conflicts with the product page and is not treated as settled. ↗ — checked October 5, 2026.
- Historical exact-ASIN request returned an internal error; current exact offer is unverified. ↗Paid link · We may earn a commission. — checked October 5, 2026.
The decision
Magic Chef MCM990ST is a 0.9-cu.-ft. countertop microwave with a stainless front, 900-W output, ten power levels and grounded 120-V/60-Hz supply. Its 1,350-W input is separate; sources conflict on preset count, while sensor, tray size, trim and duty class remain unknown.
Is it the right fit?
Check the exact model and today’s offers on Amazon.