Product Type | Serial Adapter Card |
Form Factor | Low Profile (Half Height) |
Chipset | Systembase SB16C1058PCI |
Card Interface | PCI Express x1 |
Max Data Rate (Per Port) | 921.6 Kbps |
UART Type | 16C1050 UART |
FIFO Size | 256 bytes |
Power Output on Pin 9 | 5V / 12V selectable, up to 3A |
Weight | 170 g |
Power Requirements | Powered via PCIe slot |
STARTECH 8-Port PCIe RS-232 Serial Card, Low Profile, PEX8S1050LP





Key Benefits

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- Provides high-density serial connectivity—ideal for legacy system integration or industrial automation.
- Includes pin 9 power support (5V/12V, 3A max) across ports to enable powered device support without external PSUs.
- Backed by STARTECH's lifetime warranty and robust steel construction, ensuring long-term reliability.
Product Overview
8-Port PCI Express RS232 serial adapter card 16C1050 UART 15kV ESD; Low Profile - Bi-directional speed 921.6Kbps/port 256byte FIFO - Controller card; Pin 9 power 5v/12v, 3A max - 2xDB44 to DB9 cables w/Hex nuts - Windows only; Systembase SB16C1058PCISpecifications
Product Overview
Physical & Environmental
Enclosure Color | Yellow |
Product Material | Steel |
Width | 0.9 Inch |
Depth | 5.7 Inch |
Height | 2.4 Inch |
Humidity Tolerance | 5% to 95% RH |
Operating Temperature | 0°C to 50°C (32°F to 122°F) |
Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
Cloud Management & Licensing
Software Compatibility | Windows 11, 10, 8, 7 only |
Interfaces
Number of Ports | 8 |
Connector Type | DB9 (via DB44 breakout cables) |
Included Cables | 2 x DB44 to 4 x DB9 breakout cables |
Port Type | RS-232 (DB9) |
Interface Bus | PCIe 2.0 x1 |
Flow Control | Hardware and Software |
Parity | Odd, Even, Mark, Space, None |
Stop Bits | 1, 1.5, 2 |
Data Bits | 5, 6, 7, 8 |
Speed Per Port | Up to 921.6 Kbps |
Compliance & Origin
Country of Origin | Taiwan |
TAA Compliant | Yes |
ESD Protection | 15kV (Air) / 8kV (Contact) |
Certifications | CE, FCC |
RoHS Compliant | Yes |
Advanced Security Features
Serial Interface Protection | 15kV Built-in ESD protection |