Product comparison · 2 interface cards/adapters

StarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car 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

35specifications compared
12differ
23identical
2known for one product only

Key differences

Expansion card standard
- 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car:PCI 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 PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car: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
Width
- 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car: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 PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car:44 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 PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car:143 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 PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car:174 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 weight
- 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car:130 g
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:151 g
Master (outer) case width
- 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car:365 mm
- 2-Port PCI Express RS232 Serial Adapter Card, 16550 UART, PCIe to Dual Serial DB9 Host Controller, Windows & Linux, TAA - Replaced by PEX2S953:355 mm

Side by side

Differences highlightedShow differences only

Comparison of PEX1S553LP, PEX2S553
37 specifications	A StarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Car Model PEX1S553LP 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
Expansion card standardDiffers	PCI 1.1	PCIe 1.0
Serial ports quantityDiffers	1	2
System requirements2 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 11, Windows 11 x64, Windows 2000, Windows 2000 Professional, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 H	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
Other operating systems supportedDiffers	DOS, Windows XP Embedded	DOS, Windows Embedded POSReady 2009, Windows Embedded Standard 2009, Windows XP Embedded
Technical detailsidentical
Sustainability complianceKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions2 differ
WidthDiffers	80 mm	120 mm
WeightDiffers	44 g	61 g
Packaging data3 differ
Package widthDiffers	143 mm	145 mm
Package depthDiffers	174 mm	175 mm
Package weightDiffers	130 g	151 g
Logistics data3 differ
Master (outer) case widthDiffers	365 mm	355 mm
Master (outer) case lengthDiffers	692 mm	690 mm
Master (outer) case heightDiffers	315 mm	310 mm
Other featuresidentical
Compatible operating systemsKnown for one	Linux, Mac OS 10.4.x	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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