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The Westinghouse WMB4425SA is a discontinued, built-in combination microwave with convection and grill functions—not a countertop microwave. Its published specifications describe what it can do, but they do not establish how well it cooks: CHOICE’s public page does not show its performance scores, and the two owner reviews available are only anecdotes. Before considering one, check cabinet fit and arrange for a qualified electrician to handle its hardwired connection.
What kind of microwave is the WMB4425SA?
Westinghouse describes the WMB4425SA as a 44-litre built-in combination microwave. It combines microwave heating with convection and a radiant grill, so it offers cooking modes beyond a conventional microwave. The manufacturer says the grill can add a crisper result; that is the brand’s description, not an independently verified performance finding.
Westinghouse lists 900 W microwave output, with 1,750 W each for the grill and convection functions. The controls are electronic push buttons, and the specification lists 10 programmed functions, three combination modes and child safety. These figures describe the equipment and settings; they do not predict comparative cooking results.
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| Item | Published information |
|---|---|
| Type | Built-in combination microwave with convection and grill |
| Nominal capacity | 44 L, according to Westinghouse |
| Usable capacity | 41 L, measured by CHOICE; usable cavity dimensions are 23 × 41 × 43 cm |
| External dimensions | 595 mm wide × 568 mm deep × 454 mm high, according to Westinghouse |
| Microwave output | 900 W, according to Westinghouse |
| Grill and convection power | 1,750 W each, according to Westinghouse |
| Controls and functions | Electronic push controls, 10 programmed functions, three combination modes and child safety |
| Electrical connection | Hardwired; listed connection load is 1.75 kW |
| Warranty | Two-year domestic warranty listed; check the warranty card and applicable Australian or New Zealand terms |
The 44 L and 41 L figures are not contradictory: Westinghouse gives nominal capacity, while CHOICE reports measured usable volume. Turntable figures also use different sources and definitions: CHOICE lists a 34 cm usable turntable diameter, while Appliances Online lists a 360 mm turntable. Treat those as source-specific measurements rather than assuming they are interchangeable.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Will it fit your cabinet, and does it need hardwiring?
The external measurements are not enough to confirm a safe fit. Check the installation manual for the required cabinet cutout, clearances and ventilation, then compare those requirements with the actual opening. Do not order based only on the appliance’s 595 × 568 × 454 mm outer dimensions.
The WMB4425SA requires a hardwired electrical connection. Appliances Online says connection must be completed by a qualified electrician, so factor in both the electrical setup and installation cost. If your kitchen only supports a plug-in appliance, this model is not a straightforward replacement.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Is the WMB4425SA any good?
The available public evidence is not enough to give a confident cooking-performance verdict. CHOICE has a model-specific page, but its expert rating and tests covering cooking performance, ease of use, vegetables, defrosting, reheating, grilling, baking, roasting and visibility are available only to members. Its public page does show specifications, including the 41 L usable capacity and 34 cm measured turntable diameter; it does not provide a public score to quote.
ProductReview.com.au displays two owner reviews. One person who bought the appliance in 2019 said the hardwire requirement made it unsuitable for their kitchen. A reviewer whose purchase date was April 2018 described the manual as vague and said they had not tried the roast function. Those comments can flag installation and learning-curve questions, but two accounts cannot establish typical reliability or performance.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Appliances Online shows a 4.8 average customer rating from a small retailer review set. Treat that as retailer-hosted feedback, not independent testing. The retailer describes the supplied accessories as a turntable and related items rather than slide-out shelves, and directs customers to the manual for details.
Is it discontinued, and can you still get parts?
CHOICE and ProductReview.com.au both list the WMB4425SA as discontinued. Westinghouse’s product page links to a replacement, but the page material does not establish the replacement’s model number. Discontinuation does not prove that no new, used or refurbished units remain for sale, but current inventory and prices have not been established. Check the condition and exact model number with any seller.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Westinghouse’s product page provides links to the user manual, fact sheet and spare-parts channel. Appliances Online identifies a turntable and grill rack, but current replacement-part numbers and stock have not been confirmed. Before ordering a part, verify the exact WMB4425SA compatibility and part number with the manufacturer or seller.
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What to check before choosing an alternative
If you are replacing this appliance, compare built-in combination microwaves against your actual kitchen and cooking needs, not just the headline capacity. Check:
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
- Required cabinet cutout, clearances and external dimensions.
- Whether the electrical connection is hardwired or plug-in, and who must install it.
- Nominal and usable capacity, cavity dimensions and turntable diameter.
- Microwave, convection and grill functions, including their power ratings.
- Controls and programmed modes, along with warranty, service and parts support.
- Verified current price and stock, including whether a listing is new, used or refurbished.
WMB4425SC is a different Westinghouse model. Do not assume its dimensions, functions or specifications apply to the WMB4425SA; check the exact model documentation.
Quick Recap
Sources
- Westinghouse WMB4425SA product page
- CHOICE WMB4425SA review page
- ProductReview.com.au owner reviews
- Appliances Online WMB4425SA listing
- Westinghouse WMB4425SC product page
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
