Product comparison · 2 interface cards/adapters

StarTech.com 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART vs StarTech.com 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953

30specifications compared
12differ
18identical
7known for one product only

Key differences

Expansion card standard
- 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:PCIe 1.1
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:PCIe 1.0
Serial ports quantity
- 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:1
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:2
Compliance certificates
- 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:RoHS
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:CE, RoHS
Width
- 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:80 mm
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:120 mm
Weight
- 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:51.5 g
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:61 g
Package width
- 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:38 mm
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:145 mm
Package depth
- 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:213 mm
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:175 mm
Package height
- 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART:138 mm
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:32 mm

Side by side

Differences highlightedShow differences only

Comparison of PEX1S553, PEX2S553
37 specifications	A StarTech.com 1 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART Model PEX1S553 View product	B StarTech.com 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953 Model PEX2S553 View product
Ports & interfaces2 differ
Host interface	PCIe	PCIe
Output interface	Serial	Serial
Expansion card standardDiffers	PCIe 1.1	PCIe 1.0
Serial ports quantityDiffers	1	2
Serial interface type	RS-232	RS-232
Peripheral (Molex) power connectors (4-pin)	1	1
Designidentical
Internal	Yes	Yes
Product colour	Green	Green
CertificationKnown for one	Microsoft WHQL, CE, FCC	Unknown — not stated by the source
Featuresidentical
Chipset	ASIX - MCS9922CV-AA	ASIX - MCS9922CV-AA
Baud rate	460.8 Kbit/s	460.8 Kbit/s
FIFO (First In, First Out)	128 B	128 B
Operational conditionsidentical
Operating temperature (T-T)	-10 - 80 °C	-10 - 80 °C
Storage temperature (T-T)	-20 - 100 °C	-20 - 100 °C
Operating relative humidity (H-H)	5 - 85%	5 - 85%
System requirements3 differ
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 Pro, Windows 10 Pro x64, Windows 2000, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic,	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 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 11, Windows 11 x64, Windows 2000, Windows 7, Windows 7 Enterprise, Wind
Mac operating systems supported	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	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 supported	Yes	Yes
Server operating systems supportedDiffers	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019
Other operating systems supportedDiffers	DOS, Windows XP Embedded	DOS, Windows Embedded POSReady 2009, Windows Embedded Standard 2009, Windows XP Embedded
Technical details1 differ
Compliance certificatesDiffers	RoHS	CE, RoHS
Sustainability complianceKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions2 differ
WidthDiffers	80 mm	120 mm
Depth	105 mm	105 mm
Height	20 mm	20 mm
WeightDiffers	51.5 g	61 g
Packaging data4 differ
Drivers included	Yes	Yes
Manual	Yes	Yes
Package widthDiffers	38 mm	145 mm
Package depthDiffers	213 mm	175 mm
Package heightDiffers	138 mm	32 mm
Package weightDiffers	200 g	151 g
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	75 pc(s)
Master (outer) case widthKnown for one	Unknown — not stated by the source	355 mm
Master (outer) case lengthKnown for one	Unknown — not stated by the source	690 mm
Master (outer) case heightKnown for one	Unknown — not stated by the source	310 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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