The catch
Brother ADS-3100
It offers neither Wi-Fi nor Ethernet.
Side by side
If more than one computer needs to reach the scanner, or you want named touchscreen jobs, get the ADS-3350W. For one USB-connected computer working through the same size of scan packets, the ADS-3100 is the simpler fit.
Before you buy
The ADS-3350W can sit on Ethernet or Wi-Fi, so it does not depend on one computer’s USB port. That means nobody has to move a laptop or hand the cable around in a shared home office. Even so, there is no guarantee that every device on a guest or isolated network can reach it.
Where this comes from
USB stays on both. Whether the scanner shows on the network depends on the router and supported application.
The catch
It offers neither Wi-Fi nor Ethernet.
The catch
Brother's 4.3-inch models show more screen than this model's 2.8-inch display.


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A dedicated USB scanner meets a shared network model here. The upgrade adds access and job selection. The 60-sheet feeder is no faster.
If more than one computer needs to reach the scanner, or you want named touchscreen jobs, get the ADS-3350W. For one USB-connected computer working through the same size of scan packets, the ADS-3100 is the simpler fit.
Which one fits
Feeder capacity and rated speed are the same on both.
With Ethernet there is no need to move the USB connection by hand.
Each feeder holds 60 suitable sheets.
Destinations can be seen at the scanner on the touchscreen.
In practice
The ADS-3350W can sit on Ethernet or Wi-Fi, so it does not depend on one computer’s USB port. That means nobody has to move a laptop or hand the cable around in a shared home office. Even so, there is no guarantee that every device on a guest or isolated network can reach it.
USB stays on both. Whether the scanner shows on the network depends on the router and supported application.
Both feeders take 60 ordinary sheets, so a 90-sheet packet means a first load plus one reload with either model. If cutting the number of feeder visits is your main goal, the screen on the ADS-3350W is not the upgrade that fixes it.
Rounding 90 divided by 60 up gives two loads. Thick or mixed originals can reduce the effective capacity.
On the ADS-3350W, named touchscreen jobs let you treat a household archive, invoices and shared work records as separate choices. When every scan lands in one inbox and one person does the sorting, the simpler controls of the ADS-3100 involve less of a compromise.
Saved jobs still depend on a correct initial setup and access to the destination. It is an advantage in workflow and makes no claim about error rates.

Brother, ADS-3100
Pair one computer with a 60-sheet scanner for steady paperwork, with no wireless setup to deal with.

Brother, ADS-3350W
A 60-sheet scanner you can share over Ethernet or Wi-Fi, with routine jobs selected on its touchscreen.
Spec by spec
| Spec | Brother ADS-3100 | Brother ADS-3350W | In practice |
|---|---|---|---|
| Network access | USB only | Wi-Fi and Ethernet plus USB | The ADS-3350W suits a shared network it can reach. |
| Job selection | Physical controls | 2.8-inch touchscreen | You can use named jobs without going back to the computer. |
| Feeder capacity | 60 sheets | 60 sheets | A 90-sheet packet still needs a refill after the upgrade. |
| Single-sided scan rate | 40 ppm at Letter 300 dpi | 40 ppm at Letter 300 dpi | No speed reason to upgrade comes from the documented single-sided feed rating. |
Trade-offs
Change of plan
Go with Brother ADS-3350W. The ADS-3350W brings Ethernet and Wi-Fi together.
Go with Brother ADS-3100. Ordinary packets of the same size are covered by the scan engine and feeder alike.
Neither model fits. Look at a 100-sheet model, for example the ADS-4900W.
Decision guide
Pick the ADS-3350W if more than one computer needs the scanner or if named touchscreen jobs appeal to you. Pick the ADS-3100 if one USB-connected computer handles scan packets of the same size and you want the simpler setup.
The ADS-3350W can connect over Ethernet or Wi-Fi, so it need not be tied to one computer's USB port. In a shared home office, that spares you from moving a laptop around or handing the cable from person to person. It does not guarantee that every device on a guest or isolated network can reach the scanner. Both devices keep USB. Whether a device can see the scanner depends on the router and the supported application.
Both feeders take 60 ordinary sheets, so a 90-sheet packet means a first load and one reload no matter which model you buy. The ADS-3350W's screen won't help if cutting down on trips to the feeder is your main goal. Rounding 90 divided by 60 up gives two loads. Thick or mixed originals can lower the effective capacity.
With named touchscreen jobs on the ADS-3350W, a household archive, invoices and shared work records can each be their own choice. When every scan lands in one inbox and one person does the sorting, the ADS-3100's simpler controls cost you less. Saved jobs still depend on correct initial setup and access to the destination. Treat this as a workflow advantage. It makes no claim about error rates.
By the numbers
What we found across the document scanners we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Brother ADS-3100 |
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| Brother ADS-3350W |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

All incoming paper goes through one computer
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Several computers have to reach it over a network
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