Product comparison · 2 interface cards/adapters

StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car vs StarTech.com 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA

23specifications compared
18differ
5identical
23known for one product only

Key differences

Host interface
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:Mini PCI Express
- 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA:PCIe
Output interface
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:Serial
- 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA:eSATA
Expansion card standard
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:PCIe 1.1
- 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA:PCIe 3.0
Certification
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:CE, FCC
- 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA:CE, FCC, TAA, REACH
Operating temperature (T-T)
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:-10 - 80 °C
- 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA:5 - 50 °C
Storage temperature (T-T)
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:-20 - 100 °C
- 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA:-25 - 70 °C
Operating relative humidity (H-H)
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:5 - 85%
- 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA:15 - 90%
Width
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:67 mm
- 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA:80 mm

Side by side

Differences highlightedShow differences only

Comparison of PEX2S953LP, PEXUSB311A1E
46 specifications	A StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car Model PEX2S953LP View product	B StarTech.com 2-Port USB 3.1 (10Gbps) and eSATA PCIe Card - 1x USB-A and 1x eSATA Model PEXUSB311A1E View product
Ports & interfaces3 differ
Host interfaceDiffers	Mini PCI Express	PCIe
Output interfaceDiffers	Serial	eSATA
Expansion card standardDiffers	PCIe 1.1	PCIe 3.0
Serial ports quantityKnown for one	2	Unknown — not stated by the source
Serial interface typeKnown for one	RS-232	Unknown — not stated by the source
Peripheral (Molex) power connectors (4-pin)Known for one	1	Unknown — not stated by the source
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityKnown for one	Unknown — not stated by the source	1
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
Port multiplierKnown for one	Unknown — not stated by the source	No
Design1 differ
Mean time between failures (MTBF)Known for one	222366 h	Unknown — not stated by the source
CertificationDiffers	CE, FCC	CE, FCC, TAA, REACH
Product colourKnown for one	Unknown — not stated by the source	Red
Features1 differ
ChipsetDiffers	Asix AX99100	ASMedia - ASM2142, ASMedia - ASM1351
Baud rateKnown for one	921.6 Kbit/s	Unknown — not stated by the source
FIFO (First In, First Out)Known for one	256 B	Unknown — not stated by the source
Data bitsKnown for one	5, 6, 7, 8, 9	Unknown — not stated by the source
Stop bitsKnown for one	1, 1.5, 2	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	No, RTS/CTS, XON/XOFF	Unknown — not stated by the source
Data transfer rate (max)Known for one	Unknown — not stated by the source	10 Gbit/s
UASP supportKnown for one	Unknown — not stated by the source	Yes
Operational conditions3 differ
Operating temperature (T-T)Differs	-10 - 80 °C	5 - 50 °C
Storage temperature (T-T)Differs	-20 - 100 °C	-25 - 70 °C
Operating relative humidity (H-H)Differs	5 - 85%	15 - 90%
System requirements2 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 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterpris	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 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home
Server operating systems supportedDiffers	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016	Windows Server 2012, Windows Server 2016, Windows Server 2019
Weight & dimensions4 differ
WidthDiffers	67 mm	80 mm
DepthDiffers	98 mm	93 mm
HeightDiffers	18 mm	100 mm
WeightDiffers	55.6 g	46 g
Packaging data4 differ
QuantityKnown for one	1	Unknown — not stated by the source
ManualKnown for one	Yes	Unknown — not stated by the source
Package widthDiffers	144 mm	170 mm
Package depthDiffers	175 mm	142 mm
Package heightDiffers	33 mm	30 mm
Package weightDiffers	146.4 g	122 g
Quick installation guideKnown for one	Unknown — not stated by the source	Yes
Logistics dataidentical
Products per master (outer) caseKnown for one	75 pc(s)	Unknown — not stated by the source
Master (outer) case widthKnown for one	693 mm	Unknown — not stated by the source
Master (outer) case lengthKnown for one	360 mm	Unknown — not stated by the source
Master (outer) case heightKnown for one	338 mm	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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