Product comparison · 2 interface cards/adapters

StarTech.com 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485 vs StarTech.com 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power

18specifications compared
14differ
4identical
21known for one product only

Key differences

Output interface
- 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485:Serial
- 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power:USB 3.2 Gen 1 (3.1 Gen 1)
Data transfer rate (max)
- 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485:0.4608 Gbit/s
- 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power:5 Gbit/s
Operating temperature (T-T)
- 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485:0 - 100 °C
- 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power:0 - 50 °C
Storage temperature (T-T)
- 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485:-65 - 150 °C
- 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power:-20 - 60 °C
Operating relative humidity (H-H)
- 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485:20 - 80%
- 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power:5 - 85%
Depth
- 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485:170 mm
- 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power:82 mm
Height
- 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485:68 mm
- 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power:120 mm
Weight
- 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485:83 g
- 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power:51 g

Side by side

Differences highlightedShow differences only

Comparison of PEX8S232485, PEXUSB3S25
39 specifications	A StarTech.com 8 Port PCI Express (PCIe) RS-232/422/485 Serial Card - 4 x RS232 4 x RS422 / RS485 Model PEX8S232485 View product	B StarTech.com 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP - LP4 Power Model PEXUSB3S25 View product
Ports & interfaces1 differ
Output interfaceDiffers	Serial	USB 3.2 Gen 1 (3.1 Gen 1)
Expansion card form factorKnown for one	Unknown — not stated by the source	Full-height / Low-profile
Expansion card standardKnown for one	Unknown — not stated by the source	PCIe 2.0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	2
Serial ports quantityKnown for one	8	Unknown — not stated by the source
Serial interface typeKnown for one	RS-232/422/485	Unknown — not stated by the source
Designidentical
Maximum cable lengthKnown for one	Unknown — not stated by the source	3 m
CertificationKnown for one	Unknown — not stated by the source	CE, FCC
Features1 differ
ChipsetKnown for one	Unknown — not stated by the source	Renesas / NEC - µPD720202
Data transfer rate (max)Differs	0.4608 Gbit/s	5 Gbit/s
UASP supportKnown for one	Unknown — not stated by the source	Yes
FIFO (First In, First Out)Known for one	256 B	Unknown — not stated by the source
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 100 °C	0 - 50 °C
Storage temperature (T-T)Differs	-65 - 150 °C	-20 - 60 °C
Operating relative humidity (H-H)Differs	20 - 80%	5 - 85%
Storage relative humidity (H-H)Known for one	20 - 80%	Unknown — not stated by the source
System requirements2 differ
Windows operating systems supportedDiffers	Yes	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 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Server operating systems supportedDiffers	Windows Server 2003, Windows Server 2003 x64, Windows Server 2008 R2	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019
Weight & dimensions3 differ
DepthDiffers	170 mm	82 mm
HeightDiffers	68 mm	120 mm
WeightDiffers	83 g	51 g
Packaging data4 differ
Cables includedKnown for one	Unknown — not stated by the source	SATA
Drivers includedKnown for one	Unknown — not stated by the source	Yes
ManualKnown for one	Unknown — not stated by the source	Yes
Package widthDiffers	150 mm	217 mm
Package depthDiffers	215 mm	148 mm
Package heightDiffers	50 mm	37 mm
Package weightDiffers	553 g	154 g
Quick installation guideKnown for one	Yes	Unknown — not stated by the source
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	40 pc(s)
Master (outer) case widthKnown for one	Unknown — not stated by the source	452 mm
Master (outer) case lengthKnown for one	Unknown — not stated by the source	383 mm
Master (outer) case heightKnown for one	Unknown — not stated by the source	325 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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