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2.2 Cu. Ft. Countertop/Built-In Microwave with Inverter Technology NN-SD997S Stainless


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  • Enjoy faster cooking times with 1250 watts high power
  • Microwave Inverter technology delivers a seamless stream of cooking power
  • Advanced Inverter Turbo Defrost speeds up defrosting time
  • Automatic sensor adjusts power and times for different foods
  • Sleek, blue LED dial and controls complement any decor
  • Choose countertop or built-in installation, trim kit sold separately


Inverter Technology

Panasonic Inverter Technology perfects the art of cooking with microwave ovens, delivering delicious flavor, excellent color, and superb shape and texture in the foods you cook. The consistent delivery of microwave energy means delicate foods can simmer without the edges and surfaces overcooking. Foods have the look and taste you expect without the wait!

Inverter Turbo Defrost Adds a Little Cooking Boost

Panasonic has succeeded in evolving Turbo Defrost, which allows you to defrost foods even faster than previous Panasonic Auto Defrost. Panasonic Inverter Turbo Defrost technology is an advanced microwave sequencing system using the Inverter low-power delivery feature.

Keep Food Warm Until You're Ready to Eat

A pulsing delivery of very low microwave power keeps the temperature of your food at a constant level without overcooking. Our improved keep-warm menu now includes five items, so food like stew, gravy and desserts can stay warm in the oven until you are ready to serve.

Reheating and Cooking Made Simple

One-Touch Genius Sensor Cook and Reheat adjusts power levels and calculates cooking times automatically, making reheating and cooking a variety of foods easier than ever.

Multi-Lingual Menu Action Screen with Function Key

The Menu Action Screen is like having a gourmet chef to assist you in the kitchen. It scrolls step-by-step cooking instructions across the display in a choice of English, Spanish, or French. Our Function Key simplifies the programming of 10 useful, non-cooking functions. Just press the Function Key and the Menu Action Screen will display easy-to-follow steps to complete the desired function.

Clean and Smudge-Free Cabinet Finish

The Stainless Fingerprint Resistant finish on the front of our Genius Prestige Microwave ovens helps reduce the amount of unsightly smudging normally found on stainless appliances. So your microwave will look its best even when you are preparing some of your messiest recipes.

Sleek Control Panel with Blue LED Display

The silver button control panel, illuminated neon blue spin dial and generous 6-digit expanded LED display provide a high-end look and an effortless navigation experience in the kitchen.

Make More Room on Your Countertop

The Prestige Countertop Microwave Oven can also be installed in the wall using an optional matching trim kit accessory.

Product Information Page

SpecificationsExpand All

  • More Details
    • Size
    • Type
    • Installation
    • Oven Capacity
    • Cooking Power
    • Turntable Diameter
    • Panasonic Technology
    • Panasonic Inverter
    • Prestige Genius Sensor
    • Design
    • Color
    • Control Panel
    • Display Panel
    • Cooking Options
    • Style
    • Door Front
    • Door Window
    • Exterior Wrap
    • Door Release
    • Oven Interior
    • Performance
    • Power Setting
    • Multi-stage Cooking
    • Automatic Turntable
    • Menu Action Screen
    • Programmable Features
    • Sensor Cook
    • Sensor Reheat
    • More / Less Control
    • Inverter Turbo Defrost
    • Keep Warm Button
    • Popcorn Button
    • Quick Minute
    • Delay Start
    • Delay Timer
    • Function Key
    • Specifications
    • Power Requirements
    • Exterior Dimensions
      H x W x D (in.)
    • Cavity Dimensions
      H x W x D (in.)




NN-SD997S 3.2 5 18 18
Good large microwave We've had it almost two years without problems. It is large, which we wanted, but it does take up more counter space. We dropped/broke the original microwave turntable glass tray and just ordered the replacement for a decent price from Panasonic. April 30, 2015
Beautiful unit This Genius Prestige Inverter replaces an identical model (made 6/12, installed 7/13) that died at 20 months -- but we knew from reading reviews there was a chance of that happening when we chose it. Panasonic tech support says the earlier units' known problems have been corrected, so we bought one again. For us, it is still the best product out there! We think this NN-SD997S microwave is excellent -- really beautiful (cabinet-installed, with SS trim kit), intuitive, and easy to use. It's powerful, very big inside, and it works great. The Inverter Turbo Defrost, in particular, is the best microwave defroster I've ever used -- thaws foods fully without cooking the outside. April 22, 2015
Good Microwave I bought this after trying several other brands that were either malfunctioning or quit after a few weeks. I chose Panasonic because I had had one a few years before that lasted and lasted. The microwave works as expected only faster. Thank you for offering a dependable product. March 24, 2015
Terribl I had the same problem many other users had. The door interlock failed in 20 months. It cooks and functions just fine, but the door interlock design is simply amateurish. DO NOT BUY THIS MODEL - or any other Panasonic model with the same type of interlock. November 16, 2014
  • 2015-05-22T12:42:09.015-05:00
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