Main trade-off
Brother DS-740D
There is no stack feeder or wireless connection.
Head-to-head
Brother DS-740D vs DS-940DW: 940DW can leave the laptop at home
The short answer
Choose the DS-940DW when you genuinely want to leave the laptop behind. Choose the DS-740D when the laptop is already part of the job and you mainly need two-sided scanning at a small desk.
Before you choose
The reasoning and the trade-offs
The upgrade removes the computer cable, not the feeding chore
Both scan two sides in one pass and both accept one original at a time. The DS-940DW pays off for mobile capture rather than for making a 30-sheet packet unattended.
What this is based on
Battery, Wi-Fi and microSD are the meaningful additions. No stack feeder is specified on either model.
Main trade-off
Brother DS-940DW
It accepts one sheet at a time and the microSD card is sold separately.
Brother DS-740D
- Choose it for
- You always scan beside a computer
- You prefer a cable-powered workflow without charging
- Main trade-off
- There is no stack feeder or wireless connection.
Brother DS-940DW
- Choose it for
- You need to scan to a phone away from an outlet
- You want to save to a separately purchased microSD card
- Main trade-off
- It accepts one sheet at a time and the microSD card is sold separately.
About this comparison
Compare laptop-powered scanning with battery, phone and microSD workflows. See why long receipts need a different path on the DS-940DW.
Choose the DS-940DW when you genuinely want to leave the laptop behind. Choose the DS-740D when the laptop is already part of the job and you mainly need two-sided scanning at a small desk.
Winner by situation
Start with what you need it to do
Receipts captured in a car with only a phone
Battery power and Wi-Fi make the DS-940DW the relevant option.
- Brother DS-740D
- Not suitable
- Brother DS-940DW
- Better fit
Signed forms at a laptop with no free outlet
USB powers both.
- Brother DS-740D
- Good
- Brother DS-940DW
- Good
Six-foot receipt on a shallow desk
Long-paper scanning needs the correct path and enough room for the moving original.
- Brother DS-740D
- Caution
- Brother DS-940DW
- Caution
A whole folder to scan while doing another task
Both remain single-sheet feeders.
- Brother DS-740D
- Not suitable
- Brother DS-940DW
- Not suitable
What matters in practice
The differences that matter
The upgrade removes the computer cable, not the feeding chore
Both scan two sides in one pass and both accept one original at a time. The DS-940DW pays off for mobile capture rather than for making a 30-sheet packet unattended.
How we reached this conclusion
Battery, Wi-Fi and microSD are the meaningful additions. No stack feeder is specified on either model.
A long receipt can force you to open the desk again
The DS-940DW's 72-inch maximum is a simplex limit. Duplex tops out at 16 inches, while the return path allows regular paper up to 11.69 inches and narrow receipts up to 14 inches. A six-foot receipt therefore cannot keep using the space-saving return setup.
How we reached this conclusion
Use the supported straight path and long-document settings. The 14-inch return receipt limit also requires a width no greater than 3.13 inches.
Mobile storage creates a package check
The DS-940DW supports microSD saving, but Brother sells the card separately. If offline capture is your reason to upgrade, include a supported card in the purchase plan. The DS-740D instead sends the file to its connected host.
How we reached this conclusion
This compares where the file can go. It makes no claim that an SD card is encrypted or automatically backed up.
Choice A
Brother, DS-740D
DS-740D
Capture both faces of a loose form without turning it, with a return path for a cramped desk.
- Best matched use
- You always scan beside a computer
Checked facts
- Power away from a host: USB power
- Wireless connection: No
- Standalone storage: Computer required
- Two-sided stack handling: Manual, single-pass duplex
Choice B
Brother, DS-940DW
DS-940DW
Scan two-sided forms away from an outlet, then send them to a phone or save to a microSD card.
- Best matched use
- You need to scan to a phone away from an outlet
Checked facts
- Power away from a host: Battery or USB power
- Wireless connection: Wi-Fi
- Standalone storage: microSD card, sold separately
- Two-sided stack handling: Manual, single-pass duplex
Meaningful differences
What changes the fit
| What changes | Brother DS-740D | Brother DS-940DW | Why it matters |
|---|---|---|---|
| Power away from a host | USB power | Battery or USB power | The DS-940DW can operate without drawing power from a laptop. |
| Wireless connection | No | Wi-Fi | Phone scanning gives the battery model a separate use case. |
| Standalone storage | Computer required | microSD card, sold separately | A card can receive scans when you do not want to open a computer. |
| Two-sided stack handling | Manual, single-pass duplex | Manual, single-pass duplex | The upgrade does not add an automatic feeder. |
What you give up
Every choice has a cost
If you choose Brother DS-740D
- The return path has media restrictions, so leave room to use straight feeding when required.
If you choose Brother DS-940DW
- The 72-inch length applies to simplex straight-path use, not every scan mode.
Recommendation switch
The decision flips if...
A phone or memory card must replace the laptop
Choose Brother DS-940DW. The battery model adds those destinations.
Every scan already happens at your laptop
Choose Brother DS-740D. The DS-740D covers duplex capture without battery management.
Your work consists of repeated multi-page packets
Choose neither. A compact ADF scanner reduces the repeated feeding work.
What matters in practice
Before you choose
What this comparison cannot tell you
- Manufacturer feed ratings do not include document preparation, OCR or saving time.
- Confirm the supported media, scan mode, current operating system and destination before purchase.
What the facts say
What the comparison shows
Useful conclusions from the current document scanners comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Brother DS-740D |
|
| |
| Brother DS-940DW |
|
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Brother DS-740D
You always scan beside a computer
See price & reviews on AmazonBrother DS-940DW
You need to scan to a phone away from an outlet
See price & reviews on AmazonLinks open in a new tab.