KitchenAid KitchenAid KCMS2055SSS1 2.0-cu.-ft. Stainless Countertop Microwave review: pros, cons & who it suits

THE SHORT ANSWER

Our take

The KCMS2055SSS1 service code maps to KitchenAid's KCMS2055SSS stainless model family: an exact owner-manual copy labels it SSS-1, and KitchenAid's parts catalog uses SSS1. KitchenAid's own dimension guide calls the KCMS2055S a countertop microwave and documents approved trim-kit installation; the owner guide gives sensor cooking and the two kit numbers. A specific appliance dealer lists 2.0 cu. ft., 1,200 W cooking power and a 16-in. recessed turntable, but those three values are not in KitchenAid's reviewed manual or dimension guide. Historical ASIN B0018D3OFQ failed to load, so use the tagged search.

Consider it for

A stainless household countertop microwave for buyers who need a large cavity and want a documented humidity-sensor feature. The base model's 24 × 19 1/8 × 13 9/16-in. footprint calls for a large counter. KitchenAid also documents separate 27- and 30-in. stainless trim kits for approved built-in placement over certain electric ovens; confirm the exact cabinet opening and oven combination. Use the exact-model Amazon search because B0018D3OFQ did not load..

Look elsewhere if

Not a small-footprint choice: the base model is 24 inches wide, 19 1/8 inches deep and 13 9/16 inches high. The built-in path requires a specified kit and approved electric single oven, and the owner manual's warranty covers normal single-family household use rather than commercial service. Treat capacity, output and turntable diameter as retailer-sourced specifications.

Pros & cons

What could work for you, and what to consider before buying.

What works in its favor

KitchenAid publishes a 24 × 19 1/8 × 13 9/16-in. countertop footprint and an approved trim-kit route.
The owner's guide documents humidity sensor cooking, sensor popcorn and sensor reheat rather than relying on an “auto” label.
The manual names two stainless trim kits: 27-in. MK1207XSS and 30-in. MK1200XSS.
A model-specific appliance retailer lists 2.0 cu. ft., 1,200-W cooking power and a 16-in. recessed turntable for the KCMS2055SSS base model.

What to weigh up

At 24 inches wide and 19 1/8 inches deep, it needs a large counter or a planned trim-kit opening.
KitchenAid's owner manual and dimension guide reviewed here do not state the cavity capacity, output wattage or turntable diameter; those values rely on the retailer's exact-model listing.
Built-in installation requires a specified trim kit and approval for the paired electric oven; the kits are not interchangeable with a similarly sized model's trim.
The manual warranty applies to normal single-family household use, and historical Amazon ASIN B0018D3OFQ returned an internal error.

The key details

Published product specifications
Model covered	KCMS2055SSS1
Capacity	A model-specific retailer lists a 2.0-cu.-ft. cavity; KitchenAid's guide gives 24 W × 19 1/8 D × 13 9/16 H in. dimensions
Microwave output	A model-specific retailer lists 1,200 W cooking power; KitchenAid's reviewed manual and dimension guide do not state output
Cooking approach	The owner manual documents humidity-based Sensor Cook, Sensor Popcorn and Sensor Reheat, plus ten power levels
Installation options	KitchenAid lists 27-in. MK1207XSS and 30-in. MK1200XSS kits for approved installations over specified electric ovens; it calls for grounded 120 V/60 Hz supply and a 15- or 20-A circuit
Finish and turntable	The stainless variant has a retailer-listed 16-in. recessed turntable; KitchenAid's guide confirms the countertop model, and its warranty is for normal single-family use

Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.

What the features mean for you

Reconcile KCMS2055SSS1 with the stainless base model

The frozen record gives base model KCMS2055SSS in its title and KCMS2055SSS1 in the model field. KitchenAid's exact variant owner-manual copy is labeled KCMS2055SSS-1, and KitchenAid's model-parts page uses the compact SSS1 form; the owner manual itself is for the KCMS2055 family. The added `1` is a service suffix, not a new cooking feature. This remains distinct from KCMS2255BSS, whose code is different and whose details should not be transferred based on a shared KitchenAid brand.

Plan around the large cavity and recessed turntable

The product title describes a two-cubic-foot microwave, and a model-specific retailer lists a 16-inch recessed turntable. KitchenAid's reviewed owner manual does not publish those two numbers, so I label them as retailer-sourced rather than manufacturer-manual specifications. The official dimension guide independently identifies KCMS2055S and gives a 24-inch width, 19 1/8-inch depth and 13 9/16-inch height. Measure both the opening and the dish: exterior fit, cavity capacity and turntable diameter are different checks.

Use the cooking wattage as a sourced rating, not a speed promise

Designer Appliances lists 1,200 W cooking power for exact base model KCMS2055SSS. That specific output number is not in KitchenAid's owner guide or dimension sheet, so it remains a secondary-source specification. It can be compared with other published cooking-output numbers but does not predict the time for a particular dish or guarantee faster heating. KitchenAid's manual separately calls for a 120-V/60-Hz, 15- or 20-A grounded supply and recommends a circuit serving only the oven.

Treat sensor controls as more than a preset label

KitchenAid's owner guide has Sensor Cooking, Sensor Cook, Sensor Popcorn and Sensor Reheat sections. It explains that a humidity sensor detects moisture released by food and adjusts cooking time. The chart sets serving sizes and instructions for the supported foods; it advises venting covers so steam reaches the sensor. The dealer lists ten variable power levels as well, while the exact owner guide supplies the actual sensor procedures. Follow those food and cover limits instead of treating sensor cooking as a universal automatic mode.

Choose the correct approved built-in kit

The KitchenAid manual says the countertop microwave can be built in using stainless MK1207XSS for a 27-inch opening or MK1200XSS for 30 inches, subject to its approved electric single-oven pairing. The official dimension guide likewise requires approved trim kits and leaves several inches for vents. The trim is a separate accessory path, not permission to use the oven in an arbitrary cabinet opening. Check the installation dimensions for the precise oven and kit combination.

Keep use within the household evidence

The owner manual's warranty excludes repairs when the appliance is used other than for normal, single-family household use. That supports a household rather than commercial-duty classification; the documents do not promote it as foodservice equipment. Buyers needing commercial duty should select a product whose manufacturer explicitly rates it for that environment.

Search the model because the old ASIN did not load

Amazon ASIN B0018D3OFQ returned an internal error when opened on 2026-10-05. This entry therefore links to an Amazon search for KitchenAid KCMS2055SSS1 and includes buyershortlists-20; it does not claim the historical ASIN is a live exact offer. Confirm the KCMS2055SSS base and SSS1 service suffix in any current result. No current price, inventory, sales or buyer-review summary is used.

What else to compare

If 24 inches wide and 19 1/8 inches deep will not fit, compare a smaller countertop model using its exact dimension guide. For built-in installation, use one of KitchenAid's two listed kits only with the approved electric single oven and specified opening. If capacity, output or turntable diameter must be manufacturer-manual figures, choose a model whose own manual states those numbers; these KCMS2055 values are backed by the exact-model retailer page.

Amana Amana RMS10DSA 0.8-Cu.-Ft. Commercial Dial-Control Countertop Microwave Commercial 0.8-cu.-ft. countertop model with 1,000-W output and six-minute dial timer. RMS10DSA is a compact, explicitly foodservice-classified countertop microwave with 1,000-W IEC output, stainless interior/exterior, a 12-in. platter and simple dial operation. Its six-minute timer and full-power-only interface distinguish it from touch-programmed commercial models.Mainstay Mainstays EM720CGA-W 0.7-Cu.-Ft. White Countertop Microwave 0.7-cu.-ft. white model with 700-W output and 10-in. turntable. The exact white EM720CGA-W identity is independently tied to B06Y5M61H3, and its family manual provides concrete size and electrical figures: 0.7 cu. ft., 700-W output, 1,050-W input and a 10-in. tray. This supports a tagged direct product link without relying on a title alone.Sharp Sharp SMC1131CB 1.1-Cu.-Ft. Black Countertop Microwave 1.1-cu.-ft. black model with 1,000-W output and 11.2-in. Carousel turntable. SMC1131CB pairs a 1.1-cu.-ft. black countertop body with 1,000-W output and an 11.2-in. tray. Sharp documents ten power levels, simple one-touch controls, auto defrost and express cook, giving the model more usable comparison points than its renewed offer title alone.

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Before you buy

What model does KCMS2055SSS1 represent?

The exact manual cover uses KCMS2055SSS-1 and KitchenAid's parts page uses KCMS2055SSS1; both map to the KCMS2055 stainless family.

What size and power numbers are available?

A model-specific retailer lists 2.0 cu. ft., 1,200 W cooking power and a 16-in. recessed turntable. KitchenAid's manual and dimension guide do not state those three values.

Does the manual document sensor cooking?

Yes. It describes humidity-based Sensor Cook, Sensor Popcorn and Sensor Reheat with food-specific instructions.

Does it support a trim-kit installation?

Yes. KitchenAid specifies stainless 27-in. MK1207XSS and 30-in. MK1200XSS kits, for approved installation over designated electric ovens.

What are the outside measurements?

KitchenAid's KCMS2055S dimension guide lists 24 in. wide, 19 1/8 in. deep and 13 9/16 in. high.

Is it a commercial microwave?

No commercial classification is documented; the manual warranty applies to normal single-family household use.

Does Amazon ASIN B0018D3OFQ verify a current exact offer?

The detail page returned an internal error; use the tagged exact-model search instead.

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.

Read our research and update process →

The decision

KitchenAid's KCMS2055SSS1/SSS family is a 24-in.-wide countertop model with a documented sensor-cooking and optional trim-kit path. Its owner guide names the 27-in. MK1207XSS and 30-in. MK1200XSS kits, and the maker's dimension guide publishes 24 × 19 1/8 × 13 9/16-in. dimensions. A model-specific retailer supplies 2.0 cu. ft., 1,200 W and a 16-in. tray; the manual does not. Use the tagged search because ASIN B0018D3OFQ failed to load.

Is it the right fit?

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