StarTech.com MPEX4S552 - 4 Port Mini PCIe Serial Card w/ 16650
Features
The MPEX4S952 4-Port RS232 Mini PCI Express Serial Card (16650 UART) turns a mini-PCIe slot into four RS232 (DB9) serial ports with data rates up to 921.6 Kbps - a cost-saving solution for adding serial support to embedded systems missing the functionality. A native PCIe single-chip design enables you to take advantage of full PCI Express bus capability, by providing improved speed and reliability while reducing the load applied to the CPU by as much as 48% over conventional "bridge chip" serial cards . Backed by a StarTech.com Lifetime Warranty and free lifetime technical support.
The StarTech.com Advantage
- The smallest form factor available, for internally adding serial ports to any embedded system
- Native single-chip design means up to 48% less load on your CPU which is critical for small embedded PCs that use low power, low MHz CPUs
Specifications
Technical Specifications
| Bus Type | Mini PCI Express |
|---|---|
| Card Type | Embedded |
| Chipset ID | ASIX/MosChip - MCS9904CV-AA |
| Industry Standards | PCI Express Base Specification, Revision 1.1 |
| Interface | Serial |
| Port Style | Dongle (Included) |
| Ports | 4 |
| Data Bits | 5, 6, 7, 8 |
| FIFO | 256 Bytes |
| Flow Control | None, Xon/Xoff, RTS/CTS |
| Max Baud Rate | 921.6 Kbps |
| Parity | None, Odd, Even, Space, Mark |
| Serial Protocol | RS-232 |
| Stop Bits | 1, 1.5, 2 |
| Connector Type(s) | 1 - Mini PCI Express x1 (52 pin) Male |
| External Ports | 4 - DB-9 (9 pin, D-Sub) Male |
| OS Compatibility | Windows® DOS, 95, 98SE, 2000, CE 5.0/6.0, Embedded System 2009, POS Ready 2009, XP Embedded, XP, Vista, 7, 8, 8.1, 10Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016Mac OS® 10.4 to 10.10Linux 3.5.x to 4.4.x LTS Versions Only |
| Humidity | 5~95% RH |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Storage Temperature | -20°C to 85°C (-4°F to 185°F) |
| Included Items | 1 - 4 Port Mini-PCIe Serial Card4 - DB9 ribbon cable1 - Driver CD1 - Instruction Manual |
| Brand | StarTech.com |
|---|---|
| Product Type | PC Parts > IO, SCSI, IDE Cards |
| Weight | 0.091 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








