Product comparison · 2 interface cards/adapters

Brainboxes USB 4 Port RS422/485 1MBaud vs StarTech.com 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based

16specifications compared
13differ
3identical
31known for one product only

Key differences

Host interface
- USB 4 Port RS422/485 1MBaud:USB Type-B
- 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based:ExpressCard
Serial ports quantity
- USB 4 Port RS422/485 1MBaud:4
- 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based:1
Serial interface type
- USB 4 Port RS422/485 1MBaud:RS-422/485
- 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based:RS-232
Mac operating systems supported
- USB 4 Port RS422/485 1MBaud:Yes
- 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based:Mac OS X 13.0 Ventura
Width
- USB 4 Port RS422/485 1MBaud:215 mm
- 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based:35 mm
Depth
- USB 4 Port RS422/485 1MBaud:123 mm
- 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based:115 mm
Height
- USB 4 Port RS422/485 1MBaud:34 mm
- 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based:18 mm
Weight
- USB 4 Port RS422/485 1MBaud:675 g
- 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based:33.6 g

Side by side

Differences highlightedShow differences only

Comparison of US-346, EC1S232U2
47 specifications	A Brainboxes USB 4 Port RS422/485 1MBaud Model US-346 View product	B StarTech.com 1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based Model EC1S232U2 View product
Ports & interfaces3 differ
Host interfaceDiffers	USB Type-B	ExpressCard
Output interface	Serial	Serial
USB 2.0 ports quantityKnown for one	1	Unknown — not stated by the source
Serial ports quantityDiffers	4	1
Serial interface typeDiffers	RS-422/485	RS-232
Designidentical
Internal	No	No
Product colour	Black	Black
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
CertificationKnown for one	RoHS EMC CE AEO (C-TPAT)	Unknown — not stated by the source
Featuresidentical
Baud rateKnown for one	921.6 Kbit/s	Unknown — not stated by the source
Data bitsKnown for one	7, 8	Unknown — not stated by the source
Stop bitsKnown for one	1, 2	Unknown — not stated by the source
Full duplexKnown for one	Yes	Unknown — not stated by the source
Flow control supportKnown for one	Yes	Unknown — not stated by the source
Parity bitKnown for one	Even, Mark, No, Odd, Space	Unknown — not stated by the source
Flow Control typeKnown for one	RTS/CTS, DTR/DSR, XON/XOFF	Unknown — not stated by the source
Export Control Classification Number (ECCN)Known for one	4A994	Unknown — not stated by the source
ChipsetKnown for one	Unknown — not stated by the source	Prolific PL2303
FIFO (First In, First Out)Known for one	Unknown — not stated by the source	512 B
Logical block addressing (LBA) supportKnown for one	Unknown — not stated by the source	8 bit
System requirements1 differ
Windows operating systems supportedKnown for one	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	Unknown — not stated by the source
Mac operating systems supportedDiffers	Yes	Mac OS X 13.0 Ventura
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Server operating systems supportedKnown for one	Windows Server 2008, Windows Server 2008 x64	Unknown — not stated by the source
Technical detailsidentical
Compliance certificatesKnown for one	Federal Communications Commission (FCC), CE, UKCA	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	215 mm	35 mm
DepthDiffers	123 mm	115 mm
HeightDiffers	34 mm	18 mm
WeightDiffers	675 g	33.6 g
Packaging data4 differ
Cables includedKnown for one	USB Type-A to USB Type-B	Unknown — not stated by the source
Package widthDiffers	300 mm	144 mm
Package depthDiffers	135 mm	175 mm
Package heightDiffers	80 mm	33 mm
Package weightDiffers	1.1 kg	106 g
Other features1 differ
Maximum operating distanceKnown for one	1200 m	Unknown — not stated by the source
Compatible operating systemsDiffers	Windows XP, Server 2003, Vista, Server 2008, Windows 7	Windows 7 (32/64bit), Vista(32/64), XP(32/64), 2000 Windows Server 2008, 2008 R2, 2003(32/64), Mac OS 8.x, 9.x, 10.x, Linux 2.4.x/ 2.6.x
SafetyKnown for one	IP-30	Unknown — not stated by the source
Data transfer rateKnown for one	Unknown — not stated by the source	0.4608 Mbit/s
Connectivity technologyKnown for one	Unknown — not stated by the source	Wired
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 57 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 80 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 60%
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84733020
Products per master (outer) caseKnown for one	Unknown — not stated by the source	65 pc(s)
Master (outer) case widthKnown for one	Unknown — not stated by the source	359 mm
Master (outer) case lengthKnown for one	Unknown — not stated by the source	689 mm
Master (outer) case heightKnown for one	Unknown — not stated by the source	322 mm

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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