Product comparison · 2 scanners

Brother DS-640E scanner Handheld scanner vs Brother DS-940DWE scanner Sheet-fed scanner

37specifications compared
21differ
16identical
47known for one product only

Key differences

Duplex scanning
- DS-640E scanner Handheld scanner:No
- DS-940DWE scanner Sheet-fed scanner:Yes
Scanner type
- DS-640E scanner Handheld scanner:Handheld scanner
- DS-940DWE scanner Sheet-fed scanner:Sheet-fed scanner
Built-in display
- DS-640E scanner Handheld scanner:No
- DS-940DWE scanner Sheet-fed scanner:Yes
Product colour
- DS-640E scanner Handheld scanner:Black, White
- DS-940DWE scanner Sheet-fed scanner:White
Sensor type
- DS-640E scanner Handheld scanner:CIS
- DS-940DWE scanner Sheet-fed scanner:Dual CIS
Scan to
- DS-640E scanner Handheld scanner:E-mail, File, Image, OCR
- DS-940DWE scanner Sheet-fed scanner:PC, Memory card, E-mail
Scan drivers
- DS-640E scanner Handheld scanner:SANE, TWAIN, WIA
- DS-940DWE scanner Sheet-fed scanner:TWAIN, WIA
Sound pressure level (max)
- DS-640E scanner Handheld scanner:42 dB
- DS-940DWE scanner Sheet-fed scanner:53 dB

Side by side

Differences highlightedShow differences only

Comparison of DS-640E, DS-940DWE
84 specifications	A Brother DS-640E scanner Handheld scanner Model DS-640E View product	B Brother DS-940DWE scanner Sheet-fed scanner Model DS-940DWE View product
Scanning1 differ
Maximum scan sizeKnown for one	215.9 x 1828.8 mm	Unknown — not stated by the source
Enhanced scan resolutionKnown for one	1200 x 1200 DPI	Unknown — not stated by the source
Optical scanning resolution	600 x 600 DPI	600 x 600 DPI
Colour scanning	Yes	Yes
Duplex scanningDiffers	No	Yes
Output colour depth	24 bit	24 bit
Output greyscale depth	8 bit	8 bit
Output monochrome depthKnown for one	1 bit	Unknown — not stated by the source
Greyscale levels	256	256
ADF scan speed (b/w, A4)Known for one	15 ppm	Unknown — not stated by the source
ADF scan speed (colour, A4)Known for one	15 ppm	Unknown — not stated by the source
Black/white scanning colour modesKnown for one	Grayscale	Unknown — not stated by the source
Input colour depthKnown for one	Unknown — not stated by the source	48 bit
Scan speedKnown for one	Unknown — not stated by the source	4 sec/page
Design3 differ
Scanner typeDiffers	Handheld scanner	Sheet-fed scanner
Built-in displayDiffers	No	Yes
Product colourDiffers	Black, White	White
DisplayKnown for one	Unknown — not stated by the source	LED
Control typeKnown for one	Unknown — not stated by the source	Buttons
Performance4 differ
Sensor typeDiffers	CIS	Dual CIS
Scan file formatsKnown for one	PDF, TIFF, JPEG	Unknown — not stated by the source
Scan toDiffers	E-mail, File, Image, OCR	PC, Memory card, E-mail
Scan driversDiffers	SANE, TWAIN, WIA	TWAIN, WIA
Scanning noise levelKnown for one	53 dB	Unknown — not stated by the source
Sound pressure level (max)Differs	42 dB	53 dB
Daily duty cycle (max)Known for one	Unknown — not stated by the source	100 pages
Maximum duty cycleKnown for one	Unknown — not stated by the source	2000 pages per month
Compatible memory cardsKnown for one	Unknown — not stated by the source	SD, MicroSD (TransFlash)
Paper handling1 differ
Maximum ISO A-series paper size	A4	A4
Scanning media types supportedDiffers	Plain paper, Plastic Card	Plastic Card, Plain paper, Business Card, Photo paper
Long-paper modeKnown for one	Yes	Unknown — not stated by the source
Card thickness (max)	1.24 mm	1.24 mm
Plastic card media weightKnown for one	35 - 270 g/m²	Unknown — not stated by the source
Auto Document Feeder (ADF) media weightKnown for one	35 - 270 g/m²	Unknown — not stated by the source
Ports & interfacesidentical
USB port	Yes	Yes
USB version	3.2 Gen 1 (3.1 Gen 1)	3.2 Gen 1 (3.1 Gen 1)
USB connector type	USB Type-C	USB Type-C
Standard interfacesKnown for one	USB 3.2 Gen 1 (3.1 Gen 1)	Unknown — not stated by the source
Power3 differ
Power consumption (typical)Known for one	2.6 W	Unknown — not stated by the source
Power supply typeDiffers	USB	USB/Battery
Power consumption (standby)Differs	1.4 W	2.3 W
Power consumption (off)Differs	0.01 W	0.11 W
Battery typeKnown for one	Unknown — not stated by the source	Built-in battery
Weight & dimensions4 differ
WidthDiffers	301 mm	319 mm
DepthDiffers	36.8 mm	45.4 mm
HeightDiffers	50.6 mm	63.1 mm
WeightDiffers	849 g	699 g
Packaging data1 differ
Quantity per pack	1 pc(s)	1 pc(s)
Package width	377 mm	377 mm
Package depth	162 mm	162 mm
Package height	76 mm	76 mm
Package weightDiffers	849 g	1.07 kg
Packaging content1 differ
Warranty cardKnown for one	Yes	Unknown — not stated by the source
Cables includedDiffers	Micro-USB	USB
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Batteries includedKnown for one	Unknown — not stated by the source	No
Bundled softwareKnown for one	Unknown — not stated by the source	Windows Software(Brother iPrint&Scan, Kofax Power PDF Standard v5, Remote Setup), Macintosh Software(Brother iPrint&Scan Desktop, Remote Setup)
Packaging contentKnown for one	Unknown — not stated by the source	USB cable, Quick setup guide, Product safety guide, Warranty, Device
System requirements3 differ
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Mac operating systems supportedDiffers	Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave	Mac OS 26 Tahoe, Mac OS X 15.0 Sequoia, Mac OS X 14.0 Sonoma
Server operating systems supportedDiffers	Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019	Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2025
Windows operating systems supportedDiffers	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterpris	Windows 10, Windows 11
Mobile operating systems supportedKnown for one	Unknown — not stated by the source	Android, iOS, iPadOS
Operational conditionsidentical
Operating temperature (T-T)	5 - 35 °C	5 - 35 °C
Operating relative humidity (H-H)	20 - 80%	20 - 80%
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 60 °C
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Other featuresidentical
Maximum media lengthKnown for one	182.9 cm	Unknown — not stated by the source
Maximum media widthKnown for one	215.9	Unknown — not stated by the source
Scan media weightKnown for one	35 - 270 g/m²	Unknown — not stated by the source
Technical detailsidentical
Pallet typeKnown for one	800 x 1200 mm	Unknown — not stated by the source
Logistics dataidentical
Products per palletKnown for one	240 pc(s)	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Harmonized System (HS) codeKnown for one	84716070	Unknown — not stated by the source
Layers per palletKnown for one	8 pc(s)	Unknown — not stated by the source
Master (outer) cases per palletKnown for one	80 pc(s)	Unknown — not stated by the source
Master (outer) cases per pallet layerKnown for one	10 pc(s)	Unknown — not stated by the source
Pallet gross heightKnown for one	16.3 cm	Unknown — not stated by the source
Pallet gross weightKnown for one	242 kg	Unknown — not stated by the source
Networkidentical
Wi-FiKnown for one	Unknown — not stated by the source	Yes
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Security algorithmsKnown for one	Unknown — not stated by the source	SSL/TLS, 64-bit WEP, 128-bit WEP, WPA-PSK, WPA2-PSK, TKIP, AES
Wi-Fi DirectKnown for one	Unknown — not stated by the source	Yes
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Lithium

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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