Product comparison · 2 scanners

Brother DS-640 scanner Handheld scanner vs Brother DS-940DW scanner Sheet-fed scanner

53specifications compared
20differ
33identical
25known for one product only

Key differences

Optical scanning resolution
- DS-640 scanner Handheld scanner:1200 x 1200 DPI
- DS-940DW scanner Sheet-fed scanner:600 x 600 DPI
Duplex scanning
- DS-640 scanner Handheld scanner:No
- DS-940DW scanner Sheet-fed scanner:Yes
Black/white scanning colour modes
- DS-640 scanner Handheld scanner:Grayscale
- DS-940DW scanner Sheet-fed scanner:Grayscale, Monochrome
Scanner type
- DS-640 scanner Handheld scanner:Handheld scanner
- DS-940DW scanner Sheet-fed scanner:Sheet-fed scanner
Scan drivers
- DS-640 scanner Handheld scanner:SANE, TWAIN, WIA
- DS-940DW scanner Sheet-fed scanner:ICA, SANE, TWAIN, WIA
Power consumption (typical)
- DS-640 scanner Handheld scanner:2.3 W
- DS-940DW scanner Sheet-fed scanner:3.6 W
Power consumption (standby)
- DS-640 scanner Handheld scanner:1.3 W
- DS-940DW scanner Sheet-fed scanner:2.2 W
Power consumption (off)
- DS-640 scanner Handheld scanner:0.01 W
- DS-940DW scanner Sheet-fed scanner:0.11 W

Side by side

Differences highlightedShow differences only

Comparison of DS-640, DS-940DW
78 specifications	A Brother DS-640 scanner Handheld scanner Model DS-640 View product	B Brother DS-940DW scanner Sheet-fed scanner Model DS-940DW View product
Scanning3 differ
Maximum scan size	215.9 x 1828.8 mm	215.9 x 1828.8 mm
Enhanced scan resolution	1200 x 1200 DPI	1200 x 1200 DPI
Optical scanning resolutionDiffers	1200 x 1200 DPI	600 x 600 DPI
Colour scanning	Yes	Yes
Duplex scanningDiffers	No	Yes
Input colour depthKnown for one	Unknown — not stated by the source	48 bit
Output colour depth	24 bit	24 bit
ADF scan speed (b/w, A4)	15 ppm	15 ppm
ADF scan speed (colour, A4)	15 ppm	15 ppm
Duplex ADF scan speed (colour, A4)Known for one	Unknown — not stated by the source	30 ipm
Black/white scanning colour modesDiffers	Grayscale	Grayscale, Monochrome
Output greyscale depthKnown for one	8 bit	Unknown — not stated by the source
Output monochrome depthKnown for one	1 bit	Unknown — not stated by the source
Greyscale levelsKnown for one	256	Unknown — not stated by the source
Design1 differ
Scanner typeDiffers	Handheld scanner	Sheet-fed scanner
Built-in display	No	No
Product colour	Black, White	Black, White
Performance2 differ
Scan toDiffers	E-mail, File, Image, OCR	E-mail, File, Image, Memory card, OCR
Scan driversDiffers	SANE, TWAIN, WIA	ICA, SANE, TWAIN, WIA
Scanning noise level	53 dB	53 dB
Sound pressure level (max)	42 dB	42 dB
Internal memoryKnown for one	Unknown — not stated by the source	512 MB
Compatible memory cardsKnown for one	Unknown — not stated by the source	MicroSD (TransFlash)
Sensor typeKnown for one	CIS	Unknown — not stated by the source
Input capacityidentical
Standard input capacityKnown for one	Unknown — not stated by the source	1 sheets
Paper handling1 differ
Maximum ISO A-series paper size	A4	A4
Scanning media types supportedDiffers	Plain paper, Plastic Card	Business Card, Plain paper, Plastic Card
Card thickness (max)	1.24 mm	1.24 mm
Maximum scan widthKnown for one	Unknown — not stated by the source	21.6 cm
Maximum scan lengthKnown for one	Unknown — not stated by the source	182.9 cm
Long-paper modeKnown for one	Yes	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 & interfaces1 differ
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	Micro-USB B	Micro-USB B
Standard interfacesDiffers	USB 3.2 Gen 1 (3.1 Gen 1)	USB 3.2 Gen 1 (3.1 Gen 1), Wireless LAN
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	64-bit WEP, 128-bit WEP, WPA-AES, WPA-PSK, WPA-TKIP, WPA2-AES, WPA2-PSK
Supported network protocols (IPv4)Known for one	Unknown — not stated by the source	DHCP, APIPA (Auto IP), WINS/NetBIOS, DNS Resolver, mDNS, SNMPv1/v2c, ICMP, Web Services(Scan), HTTP/HTTPS server, LLMNR responder,SNTP Client
Wi-Fi DirectKnown for one	Unknown — not stated by the source	Yes
Power3 differ
Power consumption (typical)Differs	2.3 W	3.6 W
Power supply type	USB	USB
Power consumption (standby)Differs	1.3 W	2.2 W
Power consumption (off)Differs	0.01 W	0.11 W
Weight & dimensions1 differ
Width	162 mm	162 mm
Depth	76 mm	76 mm
Height	377 mm	377 mm
WeightDiffers	390 g	590 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	1.02 kg	1.23 kg
Packaging contentidentical
Warranty card	Yes	Yes
Cables included	Micro-USB	Micro-USB
Quick start guide	Yes	Yes
System requirements2 differ
Linux operating systems supported	Yes	Yes
Mac operating systems supportedDiffers	Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave	Yes
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	Yes
Server operating systems supportedKnown for one	Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)	5 - 35 °C	5 - 35 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 60 °C
Operating relative humidity (H-H)	20 - 80%	20 - 80%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Other featuresidentical
Spare part retentionKnown for one	Unknown — not stated by the source	5 year(s)
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 type	800 x 1200 mm	800 x 1200 mm
Logistics data5 differ
Products per palletDiffers	240 pc(s)	216 pc(s)
Country of origin	China	China
Harmonized System (HS) code	84716070	84716070
Layers per pallet	8 pc(s)	8 pc(s)
Master (outer) cases per palletDiffers	80 pc(s)	72 pc(s)
Master (outer) cases per pallet layerDiffers	10 pc(s)	9 pc(s)
Pallet gross heightDiffers	16.3 cm	15.9 cm
Pallet gross weightDiffers	242 kg	274.3 kg

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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