Product comparison · 2 interface cards/adapters

StarTech.com 2 Port Flush Mount ExpressCard vs StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART

16specifications compared
14differ
2identical
25known for one product only

Key differences

Host interface
- 2 Port Flush Mount ExpressCard:ExpressCard
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:PCIe
Output interface
- 2 Port Flush Mount ExpressCard:USB 3.2 Gen 1 (3.1 Gen 1)
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:Serial
Chipset
- 2 Port Flush Mount ExpressCard:NEC uPD720200
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:ASIX - MCS9904CV-AA
Operating temperature (T-T)
- 2 Port Flush Mount ExpressCard:0 - 85 °C
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:0 - 50 °C
Storage temperature (T-T)
- 2 Port Flush Mount ExpressCard:-65 - 125 °C
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:-20 - 60 °C
Width
- 2 Port Flush Mount ExpressCard:54 mm
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:130 mm
Depth
- 2 Port Flush Mount ExpressCard:74 mm
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:120 mm
Height
- 2 Port Flush Mount ExpressCard:5 mm
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:19 mm

Side by side

Differences highlightedShow differences only

Comparison of ECUSB3S254F, PEX4S553
41 specifications	A StarTech.com 2 Port Flush Mount ExpressCard Model ECUSB3S254F View product	B StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART Model PEX4S553 View product
Ports & interfaces2 differ
Host interfaceDiffers	ExpressCard	PCIe
Output interfaceDiffers	USB 3.2 Gen 1 (3.1 Gen 1)	Serial
Serial ports quantityKnown for one	Unknown — not stated by the source	4
Serial interface typeKnown for one	Unknown — not stated by the source	RS-232
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	2	Unknown — not stated by the source
Designidentical
Internal	Yes	Yes
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	26280 h
CertificationKnown for one	Unknown — not stated by the source	CE, FCC, REACH
Product colourKnown for one	Black	Unknown — not stated by the source
Features1 differ
ChipsetDiffers	NEC uPD720200	ASIX - MCS9904CV-AA
Baud rateKnown for one	Unknown — not stated by the source	128 Kbit/s
FIFO (First In, First Out)Known for one	Unknown — not stated by the source	256 B
Data bitsKnown for one	Unknown — not stated by the source	5, 6, 7, 8
Operational conditions2 differ
Operating temperature (T-T)Differs	0 - 85 °C	0 - 50 °C
Storage temperature (T-T)Differs	-65 - 125 °C	-20 - 60 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 85%
System requirements1 differ
Windows operating systems supportedDiffers	Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows	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 Pro, Windows 10 Pro x64, Windows 2000, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Mac OS X 10.10 Yosemite, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Server operating systems supportedKnown for one	Unknown — not stated by the source	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019
Other operating systems supportedKnown for one	Unknown — not stated by the source	Windows Embedded POSReady 2009, Windows Embedded Standard 2009, Windows XP Embedded
Technical detailsidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
Weight & dimensions4 differ
WidthDiffers	54 mm	130 mm
DepthDiffers	74 mm	120 mm
HeightDiffers	5 mm	19 mm
WeightDiffers	23.8 g	74 g
Packaging data4 differ
QuantityKnown for one	Unknown — not stated by the source	1
Mounting brackets includedKnown for one	Unknown — not stated by the source	Yes
Drivers includedKnown for one	Unknown — not stated by the source	Yes
ManualKnown for one	Unknown — not stated by the source	Yes
Package widthDiffers	143 mm	141 mm
Package depthDiffers	173 mm	170 mm
Package heightDiffers	32 mm	30 mm
Package weightDiffers	105 g	230 g
Logistics dataidentical
Harmonized System (HS) code	84733020	84733020
Products per master (outer) caseKnown for one	75 pc(s)	Unknown — not stated by the source
Master (outer) case widthKnown for one	350 mm	Unknown — not stated by the source
Master (outer) case lengthKnown for one	690 mm	Unknown — not stated by the source
Master (outer) case heightKnown for one	320 mm	Unknown — not stated by the source
Other featuresidentical
Data transfer rateKnown for one	5 Gbit/s	Unknown — not stated by the source
Compatible operating systemsKnown for one	Windows XP(32/64-bit)/ Server 2003(32/64-bit)/ Vista(32/64-bit)/ Server 2008 R2/ 7(32/64-bit)	Unknown — not stated by the source

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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