Product Type | PCI Express Serial Card |
Form Factor | Mini PCI Express (Mini PCIe) |
Chipset | ASIX MCS9904CV-AA |
UART Type | High Performance 16650 UART |
Power Requirements | 3.3V, supplied via Mini PCIe slot |
Weight | 49 g |
Service & Support | Lifetime Warranty |
What's Included | 1 x 4-Port Mini PCIe Serial Card |
StarTech 4-Port Mini PCIe Serial Card with 16650 UART




Key Benefits

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- Ideal for embedded systems needing multiple serial connections in compact spaces
- TAA compliance and manufacturing in Taiwan make it suitable for government procurement
- Lifetime warranty ensures long-term peace of mind and reduced maintenance costs
Product Overview
Add Four RS232 Serial Ports to an Embedded System through a mini PCI Express Slot - mini pcie serial card - 4 port rs232 - 4 port serial adapter - 4 port serial pci express mini card - pci express mini card db9Specifications
Product Overview
Physical & Environmental
Dimensions | 50 mm x 30 mm |
Operating Temperature | 0°C to 70°C (32°F to 158°F) |
Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
Humidity | 5% to 95% RH (non-condensing) |
MTBF | 190,099 Hours |
Enclosure Type | Steel (card and external headers not included) |
Cloud Management & Licensing
Operating System Support | Windows DOS, 95, 98SE, 2000, CE 5.0/6.0, Embedded System 2009, POS Ready 2009, XP Embedded, XP, Vista, 7, 8, 8.1, 10 |
Driver Support | Yes (Windows and Linux) |
Interfaces
Serial Ports | 4 x RS-232 DB9 |
Interface Type | Mini PCI Express |
Data Transfer Rate | Up to 921.6 Kbps |
UART Support | 16650 with 256-byte FIFO |
Hardware Flow Control | Yes |
Parity | Odd, Even, Mark, Space, None |
Stop Bits | 1, 1.5, 2 |
Data Bits | 5, 6, 7, 8 |
Connector Type | DB9 Male via Header Cable |
Compliance & Origin
TAA Compliance | Yes |
Country of Origin | Taiwan |
RoHS Compliance | Yes |
CE Certification | Yes |
FCC Compliance | Yes |
REACH Compliance | Yes |
WEEE Compliance | Yes |
Advanced Security Features
ESD Protection | 15kV ESD Protection per port |