DS-740D
The Brother DS-740D is the duplex specialist among portables — a slim, under-1.5-pound scanner that captures both sides of a page in a single pass, something neither the ScanSnap iX100 nor the Epson ES-60W can do. It draws all its power over a single USB cable, so there’s no battery to charge and no power brick to carry. That same cable is also its main limitation: it’s USB-tethered, with no battery and no Wi-Fi, so it has to be plugged into a computer to work. As an inexpensive, genuinely pocketable duplex scanner for a laptop bag, though, it fills a real niche.
How We Scored It
Category Deep-Dives
Scan Quality & Accuracy
7.0 / 10 25% weightingThe DS-740D captures at 600 dpi optical with 48-bit internal color depth, applying basic automatic correction. For a scanner this small and inexpensive, image quality is respectable — clean enough for legible, searchable documents.
It’s a step below the ScanSnap iX100 and Epson ES-60W on fine quality and processing, and the headline 1200 dpi figure is interpolated — software-invented pixels that add nothing real for documents. For everyday paperwork on the move, though, the capture does the job.
Bottom line on scan quality: Decent 600-dpi capture for a pocket scanner; fine for documents, though a notch below the premium portables.
Speed & Throughput
6.0 / 10 20% weightingAt 16 pages per minute, the DS-740D is slower per page than the ScanSnap and Epson portables. But there’s a meaningful asterisk: because it has single-pass duplex, it captures both sides of a sheet in one pass, so a two-sided document is no slower than a one-sided one — whereas the simplex portables would need a second pass and manual flipping.
Still, like all portables it feeds one sheet at a time with no ADF, so it’s not for batches. The duplex ability is its edge within the tier, not a path to high volume — which is why it lands in the amber band like the other portables on our throughput-weighted framework.
Bottom line on speed: 16 ppm with single-pass duplex — slower per page than other portables, but it captures both sides at once, which they can’t.
Software & OCR
6.5 / 10 20% weightingThe DS-740D uses Brother iPrint&Scan and bundled capture utilities. On a mobile unit like this, the software is more basic than what the desktop scanners offer — straightforward scanning, searchable-PDF output, and the essentials, without the deep automatic filing of ScanSnap Home or the polish of ScanSmart.
For a pocket scanner, that’s a reasonable match to the hardware — it gets pages captured and into usable files. Just don’t expect the document-organizing intelligence of the premium ecosystems.
Bottom line on software: Basic but functional Brother software — gets documents scanned and into searchable PDFs without frills.
Paper Handling & Versatility
6.5 / 10 15% weightingWithin the portable form factor, the DS-740D’s single-pass duplex is a genuine handling advantage — it’s the only scanner in this tier that captures both sides at once. It also takes long pages up to 72 inches and standard documents, fed manually one sheet at a time.
The limits are the familiar portable ones: no automatic feeder, so no batches, and you hand-feed each sheet. The duplex capability lifts it above the simplex portables on this measure, but it’s still a one-at-a-time device.
Bottom line on paper handling: Single-pass duplex is the standout, and it handles long pages — but single-sheet feeding with no ADF keeps handling modest.
Connectivity
6.0 / 10 10% weightingConnectivity is where the DS-740D is most constrained, and it’s a deliberate design choice. It draws all its power over a single micro-USB 3.0 cable from a laptop or PC — there’s no battery to charge and no power adapter to pack, which is genuinely convenient. But it also means it’s USB-only with no Wi-Fi and can’t operate untethered.
So unlike the battery-and-Wi-Fi ScanSnap iX100 and Epson ES-60W, the DS-740D has to be plugged into a computer to scan — you can’t send pages straight to a phone or work with nothing connected. That’s the trade for its simplicity and low price, and the main reason its connectivity scores in the amber band.
Bottom line on connectivity: USB-powered and USB-only — no battery, no Wi-Fi. The simplest setup, but it must stay tethered to a computer.
Reliability & Value
7.5 / 10 10% weightingThe DS-740D is a simple, dependable device — fewer moving parts than a battery-and-radio portable — with a one-year limited warranty and a sturdy, sub-1.5-pound build made for a bag.
Value is its best argument: it’s the most affordable way to get single-pass duplex in a truly pocketable scanner, undercutting the premium portables. You accept USB-tethered operation and basic software in exchange. For a mobile worker who specifically wants two-sided capture on the cheap and is fine plugging into a laptop, it’s a sensible niche pick; anyone who needs untethered, wireless scanning should choose the iX100 or ES-60W instead.
Bottom line on reliability & value: Inexpensive, simple, and dependable, with a one-year warranty — strong value for a pocketable duplex scanner, if you don’t need wireless.
About the Manufacturer
Brother Industries, founded in Japan in 1908, makes printers, scanners, and office equipment worldwide. Its DSmobile line is dedicated to portable, USB-powered scanners, sitting alongside the desktop ADS range.
The DS-740D is a duplex DSmobile model — notable for capturing both sides of a page in one pass from a pocketable, bus-powered body, a capability most portables lack.
For home office buyers, the DS-740D represents Brother’s take on the budget portable: a simple, inexpensive, genuinely mobile duplex scanner for the laptop bag, for anyone who values two-sided capture and low cost over wireless freedom.