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Reviving Legacy Hardware: The PI40952-3X2B Serial Card Guide pi40952 3x2b driver
Microsoft WHQL Certified versions (v1.6.2025.05) are available as of early 2026 for Windows 11 and Server 2022 . Linux: Supported in Kernel 4.15 or above . Get the
The is a common circuit board identifier for PCI Express (PCIe) expansion cards that provide legacy communication ports, specifically Serial (RS-232) and sometimes Parallel (LPT) ports. The is a common circuit board identifier for
After a restart, the new COM or LPT ports should appear in your Device Manager under "Ports (COM & LPT)". Delock PCI Express Card to 2 x Serial
| Pin Group | Labeling | Description | |-----------|----------|-------------| | Power Input | VIN, GND | Main supply and ground plane. Requires a 10µF-100µF decoupling capacitor. | | Control Inputs (Channel A) | A0, A1 | 2-bit binary command for output A. | | Control Inputs (Channel B) | B0, B1 | 2-bit binary command for output B. | | Control Inputs (Channel C) | C0, C1 | 2-bit binary command for output C. | | Output Pins | OUTA, OUTB, OUTC | Each pin connects to the load (motor, solenoid, etc.). | | Enable | EN | Global enable (active high). Pulling low puts all outputs in a high-impedance state. | | Fault Indicator | nFLT | Open-drain output that pulls low during overcurrent or overtemperature. |