What’s actually slowing this PC down?

Pick the symptom - the matching free tool is one click away.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more

The Sirius SM923520 is a 52 cm undermount rangehood, but the public information available does not establish how well it extracts air or how noisy it is in ducted use. CHOICE marks the model discontinued and withholds its core ducted test results from public view. For buyers, the practical checks are fit, ducting, and whether the specified carbon filters are available if you plan to recirculate air.

What the Sirius SM923520 is

CHOICE lists the SM923520 as a 52 cm stainless-steel undermount rangehood with controls underneath, two LED lights, a metal anti-grease filter, one fan and four speed settings. Its listing recommends 150 mm ducting and gives a mounting height of 600–700 mm. These are listing specifications; confirm dimensions and installation requirements against the appliance and its exact manual before modifying cabinetry. CHOICE’s SM923520 listing

CHOICE marks the model discontinued. That does not establish whether any particular retailer still has stock or whether parts remain available, so check both before committing to a purchase or repair. The listing shows a historical price of $859 AUD; it is not a current offer.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Can its extraction and noise performance be judged?

Not from the public listing. CHOICE identifies its test mode as ducted, but the Expert Rating, performance and ease-of-use results, noise score, and measured low- and high-speed noise levels are member-only. The public data therefore does not support a numerical performance verdict or a claim that the hood is quiet, loud, effective, or ineffective in ducted operation.

#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
  • 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.

Do not substitute figures for the similar-looking SM923L520. Sirius/Arisit’s 2025 specification sheet for that distinct model gives 750 m³/h extraction, approximate noise of 45–70 dBA, and a recommended installation height of 600–750 mm. Those figures are not established specifications or test results for the SM923520. SM923L520 specification sheet (2025)

Which filter does it use?

For recirculating use, CHOICE lists two carbon filters, identifies the part as KF52 / SPS-6007092300, and reports a 66% score for recirculating mode. That score is separate from the unavailable ducted Expert Rating. CHOICE also lists an annual carbon-filter price of $177, but does not state when the filters should be replaced; the figure should not be treated as a current price.

Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
  • 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.

Before ordering, check the part number against the label or manual for your appliance and confirm compatibility with the seller. Availability and fit have not been established by the listing. CHOICE’s SM923520 listing

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

What to check before buying or installing one

  • Cabinet fit: Confirm the actual hood width and required cut-out using the exact appliance and instructions. A nominal 52 cm width alone is not enough to determine whether it will fit.
  • Mounting height: CHOICE lists 600–700 mm. Check the exact manual and the cooking appliance’s requirements before setting the position.
  • Ducting: The SM923520 listing recommends 150 mm ducting. Confirm the route, outlet and any kit requirements for this model; a duct diameter recommendation does not establish what accessories are included.
  • Operating mode: If you will recirculate rather than duct air outside, verify the carbon-filter part and availability before purchase.
  • Installation instructions: An indexed set of SM923 instructions covers 520, 700 and 850 variants and warns that installation requires two people because the hood is heavy. Verify that the instructions match the exact model and variant before relying on them. SM923 installation instructions
  • Stock and parts: Since CHOICE lists the model as discontinued, confirm the seller’s stock status and the availability of service parts before buying.

A device-reference page displays an electrical input of 220–240 V, 235 W and 50 Hz, alongside a certification record dated 2021-08-12 with an expiry date of 2026-08-12. Because that displayed expiry date has passed, this record is not evidence of current certification. Check current documentation for the exact appliance rather than relying on the old record. Device-reference record for SM923520

Rank #3
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
  • 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.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Verdict: who should consider the SM923520?

The SM923520 may suit someone who has verified that this discontinued 52 cm hood fits their cabinet and can obtain the necessary filters or parts. The public evidence is not enough to recommend it on ducted extraction or noise performance: CHOICE’s key test results are not public. Compare alternatives using exact installation dimensions, independent extraction and noise measurements, operating mode and filter costs, parts availability, and the total purchase and installation cost.

Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
  • 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.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
  • 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

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.