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Syba
Syba SD-PEX15022 PCIe 2-Port DB9 RS232 Expansion Card
Adds two DB9 serial ports via a single-lane PCI Express slot with a low-profile bracket option
- TypePCI Express to Serial Port Card
- External Ports2 x Serial Ports
- Operating Systems SupportedSupports Windows 2000, XP 32/64-bit, Server 2003 32/64-bit,
- FeaturesPCI-Express RS232 2x Serial Port with MSC9901 Chipset Fully
- Weight0.35
- Adds two serial ports for legacy devices
- PCIe x1 interface delivers 2.5Gbps throughput
- MSC9901 chipset enables 250Kbps per port
- Low-profile bracket fits compact chassis builds
- Supports Windows 2000 through Server 2008 64-bit
PCIe x1 RS232 serial card
The Syba SD-PEX15022 adds two DB9 serial ports through a single PCI Express x1 slot using the MOSCHIP 9901 controller. It is fully compliant with PCI-Express Base Specification Revision 1.0a and provides up to 2.5Gbps bus throughput. Each port supports transfer rates up to 250Kbps with 256-byte transmit FIFO and 16C550 UART compatibility. A low-profile bracket is included for slim chassis installations.
Legacy Windows OS support
This card suits technicians maintaining industrial equipment, point-of-sale systems or older laboratory instruments that require native RS232 connections on supported legacy Windows platforms. It is not suited for builders needing serial ports on Windows 7 or later, or for systems lacking a free PCIe x1 slot.
Two DB9 ports with low-profile option
The deciding specification is the pair of DB9 RS232 ports delivered from one PCIe x1 lane with an included low-profile bracket. If your application requires exactly two serial ports and can use the listed legacy Windows drivers, this card fits; otherwise, a different port count or modern OS support is needed.
Highlights
- Adds two serial ports for legacy devices
- PCIe x1 interface delivers 2.5Gbps throughput
- MSC9901 chipset enables 250Kbps per port
- Low-profile bracket fits compact chassis builds
- Supports Windows 2000 through Server 2008 64-bit
Specifications
| Brand | SYBA |
|---|---|
| Model | SD-PEX15022 |
| Type | PCI Express to Serial Port Card |
| External Ports | 2 x Serial Ports |
| Operating Systems Supported | Supports Windows 2000, XP 32/64-bit, Server 2003 32/64-bit, Vista 32/64-bit, Server 2008 32/64-bit |
| Features | PCI-Express RS232 2x Serial Port with MSC9901 Chipset Fully compliant with PCI-Express Base Specification Revision 1.0a Single-Lane (x1) PCI-Express with throughput up to 2.5Gbps Convert to low profile card with SINGLE serial port Compatible with industrial standard 16C550 UART On chip 256-byte depth FIFO in transmit Transfer data rates up to 250Kbps on each port Supports hardware and software flow control Supports 5, 6, 7, 8-bit serial format |
| Weight | 0.35 |
| Shipping weight | 0.15 kg |
| Package size | 173 × 142 × 41 mm |
Questions about this item
How do I install the Syba SD-PEX15022 in a low-profile chassis, and what step is often missed?
Fit the card into a PCIe x1 slot, then swap the full-height bracket for the included low-profile bracket; the step often missed is securing the bracket screw before tightening the card retention screw.
What maintenance or replacement will the Syba SD-PEX15022 need over time?
The card has no moving parts or user-serviceable components; if the MOSCHIP 9901 controller or the 256-byte FIFO buffers fail, the entire card must be replaced.
What throughput limit appears first on the Syba SD-PEX15022 during sustained transfers?
Each serial port caps at 250Kbps, so the RS-232 line rate is the first bottleneck, well below the PCIe 1.0a x1 link's 2.5Gbps capacity.
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