StarTech.com PEX4S953 - PCI-E - RS232 Serial Card - Asix AX99100
Features
4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux
CI Express to Serial Adapter | 921.6Kbps | Windows® and Linux® Compatible
4 PORT SERIAL CARD: Serial controller card w/ 16950 UART based on ASIX AX99100, allows 4x DB9 ports w/bi-directional RS232 speeds up to 921.6Kbps per port, available 256 byte FIFO buffer; Upgraded version of our popular Serial card PEX4S952
OPTIONAL CONFIGURABLE POWER: PCIe multiport serial card provides 12v, 5v, or none through pin 9 w/up to 2A total; Each of the 4 ports are individually configurable; DB44 to 4x DB9 breakout cable incl
STANDARD PROFILE & LOW PROFILE BRACKET: PCI Express RS232 serial adapter card has standard bracket pre-installed & 1x low profile bracket incl for versatile install; Supports Windows XP and up & Linux
VERSATILE APPLICATIONS: For standard profile desktop/servers with uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanners, oscilloscope
This PCI Express RS232 serial adapter card lets you add four RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slot, as if they were native serial ports. The 4 port PCIe serial card enables you to interact with serial devices, such as card readers, printers, PIN pads, and modems, at speeds of up to 921.6Kbps.
Maximum Compatibility
With broad OS support, including for Windows and Linux, this multiport PCI E serial card is easy to integrate into mixed environments. The card comes pre-configured with a full-sized bracket, and includes an optional low-profile bracket, so installation is easy regardless of the case form factor. This expansion card is a direct replacement for PEX4S952.
Experience Optimal Technology
This PCIe to serial adapter supports the following features:
- Industry standard 16950 UART compatible
- Supports max baud rate of up-to 921.6Kbps
- Provides 5/12V power output on Pin 9 when external power is connected
- 256-byte depth FIFO cache per transmitter and receiver
- Supports 9, 8, 7, 6, 5 data bits (one per port)
- Asix AX99100 chipset
- Base PCI Express 1.1 compliant
Applications
- Connect to automated self-service kiosks or ATM machines
- Connect in retail POS applications
- Install in home or office workstations
- Connect serial printers and other legacy devices to modern computers
Specifications
Technical Specifications
| 1 - Connector Type(s) | PCI Express x1 |
|---|---|
| 1 - Internal Ports | LP4 (4 pin; Large Drive Power) |
| 4 - External Ports | DB-9 (9 pin, D-Sub) |
| Operating Temperature | -10°C to 80°C (14°F to 176°F) |
| Storage Temperature | -20°C to 100°C (-4°F to 212°F) |
| Humidity | 5~85% RH |
| Ports | 4 |
| Interface | Serial |
| Bus Type | PCI Express |
| Card Type | Low Profile (SP bracket incl.) |
| Port Style | Integrated on Card |
| Chipset ID | Asix AX99100 |
| Package Height | 2.0 in [50.0 mm] |
| Package Length | 8.3 in [21.0 cm] |
| Shipping (Package) Weight | 13.1 oz [371.0 g] |
| Package Width | 5.9 in [15.0 cm] |
| Serial Protocol | RS-232 |
| Max Baud Rate | 921.6 Kbps |
| Data Bits | 5, 6, 7, 8, 9 |
| FIFO | 256 Bytes |
| Flow Control | None, Xon/Xoff, RTS/CTS |
| Parity | None, Odd, Even, Space, Mark |
| Stop Bits | 1, 1.5, 2 |
| MTBF | 214,358 hours |
| Product Height | 0.6 in [15.0 mm] |
| Product Length | 3.0 in [75.0 mm] |
| Weight of Product | 1.8 oz [50.0 g] |
| Product Width | 2.5 in [63.0 mm] |
| Material | Steel |
| Cable Length | 11.8 in [30 cm] |
| OS Compatibility | Windows® 7, 8, 8.1, 10Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016Linux 2.4.x to 2.6.x LTS Versions only |
| Microsoft WHQL Certified | Yes |
| Note | Selectable power output on pin 9 of the serial port |
| 1 - Included in Package | 4 Port PCI Express Serial CardFull Profile Bracket (Installed)Low Profile Bracket12 in [30 cm] DB44 to DB9 Break-out CableQuick Start Guide |
| Brand | StarTech.com |
|---|---|
| Product Type | PC Parts > IO, SCSI, IDE Cards > Serial Cards |
| Weight | 0.068 kg |
| Warranty |
|---|
Note:
Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.
Shipping Information
- Free NZ-wide shipping on orders over $299
- Standard delivery 2–5 business days
- Rural delivery may take an additional 1–2 days
- Same-day dispatch for orders placed before 2pm (weekdays)
Returns Policy
- 7-day returns on unused items in original packaging
- Faulty or damaged products covered under warranty
- Contact our support team to initiate a return





