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4.6 | 12 Reviews

GE® 0.9 Cu. Ft. Capacity Countertop Microwave Oven

GE Appliances GCST09N1WBB

Features

  • Compact capacity. Reliable performance.
  • Convenience cooking controls
  • Weight and time defrost
  • Sound Adjustment

Quick Specs

  • Type: Microwave
  • Style: Countertop
  • Width: 19"
  • Height: 11.5"
  • Depth: 14.5"
  • Energy Star Rated: No
  • Microwave Capacity: 0.9 cu. ft.
  • Microwave Wattage: 900.0 watts
  • Recessed Turntable: No
  • Convection Microwave: No
  • WiFi Connected: No

See More

 
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Convenience cooking controls

From popcorn to pizza, one-touch controls make it easy to prepare your favorites without any guesswork.

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Weight and time defrost

Simply enter the weight of the food, and the oven automatically sets the optimal defrosting time and power level or set your desired time for defrosting

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Versatile microwave power levels for perfect cooking

Experience customized cooking with adjustable power levels, from quick high-heat for veggies and beverages to gentle low-heat for defrosting and delicate sauces

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Compact capacity. Reliable performance. With a 0.9 cu. ft. capacity and 900 Watts of cooking power, this microwave delivers fast, even results for everyday meals, snacks, and quick reheats

Convenience cooking controls From popcorn to pizza, one-touch controls make it easy to prepare your favorites without any guesswork.

Weight and time defrost Simply enter the weight of the food, and the oven automatically sets the optimal defrosting time and power level or set your desired time for defrosting

Sound Adjustment Adjust the beeper to mute for quiet kitchens and late-night snacks, or keep it on for clear cooking alerts.

Two-Step Child Lock This mandatory feature helps prevent unintended use by younger family members, with the option to deactivate it if not needed.

Timer On/Off Functions as a minute timer for added flexibility, even while the microwave is in use.

Control lockout Locks the control panel to help prevent accidental use or activation

Versatile microwave power levels for perfect cooking Experience customized cooking with adjustable power levels, from quick high-heat for veggies and beverages to gentle low-heat for defrosting and delicate sauces

Express Cook Simplicity Just press a number, 1-6, for equal minutes of cooking time. Enjoy the ease of efficient meal prep, perfect for family dinners or quick snacks

Add 30 Sec Quickly start cooking or add extra time in 30-second increments, perfect for reheats and quick adjustments

Features

  • Compact capacity. Reliable performance.
  • Convenience cooking controls
  • Weight and time defrost
  • Sound Adjustment
  • Two-Step Child Lock
  • Timer On/Off
  • Control lockout
  • Versatile microwave power levels for perfect cooking
  • Express Cook Simplicity
  • Add 30 Sec
CAPACITY
Total Capacity (cubic feet) 0.9 cu ft
Unit Capacity Compact
APPEARANCE
Case Color Black
Installation Countertop
Door Color Black
Color Appearance Black
POWER / RATINGS
Watts 1350
Hertz 60
Electrical Input - 120V Amperage 9.5
Electrical Requirements 120V
Volts/Hertz 120V; 60Hz
Electrical Input - 120V Watts 1050
WARRANTY
Labor Warranty No Warranty
Parts Warranty 1-Year Replacement
Return to vendor
Warranty Notes See written warranty for full details
WEIGHTS & DIMENSIONS
Approximate Shipping Weight 30.1 lb
Net Weight 27.8 lb
Depth with Door Open 90° 25.625 in
Cavity (W x H x D) 13.7 x 8.7 x 12.4
Overall Width 19 in
Overall Depth 14.5 in
Overall Height 11.5 in
FEATURES
Display Type LED
Cooking System Turntable
Interior Lighting Incandescent
Power Cord Length 39"
Electronic Digital Display with Clock Yes
Control Features Add 30 Seconds
Auto & Time Defrost
Cancel/Off
Child Lock-Out
Clock - 12 Hr.
Cooking Complete Reminder
Express Cook - Instant-On 1-6 Minutes
Sound On/Off
Start/Pause
Time Cook I & II
Timer On/Off
Display Screen Size (Diagonal Length) 2.45
Product Type Countertop Microwave
Microwave Watts (IEC-705) 900 W
Power Levels 10
Control Type Electronic Touch
LED
Turntable Glass
Instant On Controls 1-6 Minutes
Microwave Convenience Cooking Controls Beverage
Dinner Plate
Pizza
Popcorn
Potato
Reheat
Vegetable
Cooking Technology Microwave
Turntable Size 10.5 in

Quick Specs


  • Appearance

  • Type: Microwave
  • Style: Countertop

  • Dimensions

  • Width: 19"
  • Height: 11.5"
  • Depth: 14.5"

  • Features

  • Energy Star Rated: No
  • Microwave Capacity: 0.9 cu. ft.
  • Microwave Wattage: 900.0 watts
  • Recessed Turntable: No
  • Convection Microwave: No
  • WiFi Connected: No

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

4.6 out of 5

91% of reviewers recommend this product.

5 Stars

G.E. 0.9 microwave

Bj52 4/16/2026

My microwave quit so I bought this smaller one, and I love it. It works great and has all the features my old one had. The price was affordable and the smaller size is more convenient for my apartment.
Originally posted on www.ge.com

Yes, I recommend this product

5 Stars

Great look and operation!!

JudyMc 2/14/2026

I™€™m very happy with the size the color and the operation of this microwave.
Originally posted on www.ge.com

Yes, I recommend this product

5 Stars

Nice looking microwave

Our new wave 12/24/2025

Our new microwave oven looks great, looking forward to using it a lot!
Originally posted on www.ge.com

Yes, I recommend this product

5 Stars

Nice upgrade

Andeeee 11/30/2025

Works much faster than our previous microwave and is very quiet.
Originally posted on www.ge.com

Yes, I recommend this product

5 Stars

Microwave

Joe Matthews 11/20/2025

Just as ordered Easy to install. No manual. Get on internet
Originally posted on www.ge.com

Yes, I recommend this product

5 Stars

Heat up very well.

Jkky 10/24/2025

This microwave heats up very well and has a lot of options.
Originally posted on www.ge.com

Yes, I recommend this product

4 Stars

Works fine

Pitbull Annie 10/13/2025

Works fine, not very intuitive. No Paper instruction manual
Originally posted on www.ge.com

Yes, I recommend this product

2 Stars

Great microwave oven

Val1964 7/13/2025

I love my microwave oven until today I was unable to shut the door and I read the owners manual and I completed an internet research to no avail. I purchased my microwave oven last month and I need it repaired. I need a new microwave oven because I tried to repair the inoperable door that does not shut.
Originally posted on www.ge.com

No, I do not recommend this product

5 Stars

Mini Microwave

Nancy SHB 6/12/2025

Great size, works as hoped. Would recommend to others.
Originally posted on www.ge.com

Yes, I recommend this product

5 Stars

Great Design and power !

Atlantiss300 5/31/2025

Excellent product. I've always been a GE fan Because they're Appliances last forever. Works great !
Originally posted on www.ge.com

Yes, I recommend this product

4 Stars

Great microwave

Sasha30 5/18/2025

I own multiple GE appliances. My parents microwave stopped working after 35 years. I trusted this brand and reviews and found this perfect fit for their kitchen cupboard.
Originally posted on www.ge.com

Yes, I recommend this product

5 Stars

Nice smaller microwave

Peg6019 11/10/2024

Exactly what I needed for the space I had and works fine. Only that that could be better is if the writing on the buttons would be more visible. They are hard to see unless I get up close, but I am old, so there's that!
Originally posted on www.ge.com

Yes, I recommend this product