Pi40952 3x2b Driver Access
If you can share a photo of the IC or tell me what device it came from (e.g., industrial display, automotive module), I can narrow down the search. Would you like help reverse-engineering the pinout instead?
The PI40952-3X2B 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.
These cards are typically used to connect vintage or industrial hardware—like scanners, CNC machines, or receipt printers—to modern computers that lack built-in serial ports. 1. Chipset Identification
To find the correct driver, you first need to identify the chipset on your specific card. The "PI40952-3X2B" label is often used by multiple manufacturers (like Delock, Manhattan, or STLab) who may use different internal chips.
Oxford (PLX) Chipset: Often found in the Delock 89220 model. It uses the OXPCIe952 chip and supports data rates up to 230.4 Kbps.
WCH (Nanjing Qinheng) Chipset: Many cards with this board ID use WCH chips (like the CH382 or CH35x). These are very common in generic PCIe-to-Serial/Parallel cards. 2. Driver Download Sources
Depending on your chipset, use the official manufacturer support pages:
For Oxford/PLX Cards: Visit the Delock Service & Support page and search for your specific item number (e.g., 89220).
For WCH Cards: Download the CH38XDRV installation package from Nanjing Qinheng Microelectronics. This package supports Windows 11/10/8.1 and Linux. 3. Installation Guide
If the card is listed as an "Unknown Device" or "PCI Serial Port" in Windows Device Manager: Right-click the device and select Properties. Go to the Details tab and select Hardware IDs. Look for the Vendor ID (VEN) and Device ID (DEV). VEN_1415: This is an Oxford/PLX chip. VEN_1C00: This is a WCH chip.
Once identified, run the installer from the manufacturer links above. Technical Specifications Delock PCI Express Card to 2 x Serial
PI40952-3X2B is a specialized hardware component, specifically a PCI Express dual serial port adapter card . Primarily manufactured under the brand
(often associated with part number 89220), this adapter is designed to expand a computer's connectivity by providing two external serial RS-232 DB9 ports.
Below is an overview of its technical significance, hardware specifications, and driver requirements. Hardware Architecture and Functionality The card operates on the PCI Express x1
interface (Version 1.1), making it compatible with most modern motherboards that feature an open PCIe slot. At its core, the PI40952-3X2B utilizes the Oxford OXPCIe952 chipset
. This chipset is a high-performance solution that supports data transfer rates of up to 230.4 Kbps and is compatible with the 16C950 UART standard.
The card is frequently used in industrial and legacy environments where serial communication is still vital for connecting devices such as: Point of Sale (POS) systems: Scanners, receipt printers, and credit card terminals. Industrial machinery: PLC programming cables and CNC machines. Networking equipment: Console cables for switches and routers. Physical Design pi40952 3x2b driver
To accommodate various system sizes, the card often features a Low Profile
design. It typically ships with both standard and low-profile brackets, allowing it to be installed in both full-sized desktop towers and Mini-PCs or Small Form Factor (SFF) workstations. Driver Support and Compatibility
For the PI40952-3X2B to function, the operating system requires specific drivers to manage the Oxford chipset. These drivers facilitate the communication between the hardware and the Windows COM port management system. Delock PCI Express Card to 2 x Serial
Description. The PCI Express card by Delock expands a PC by two external serial ports. Different devices such as scanner, printer, Delock PCI Express Card to 2 x Serial RS-232 + 1 x Parallel
The EXONE PI40952-3X2B Go to product viewer dialog for this item.
is a PCI Express (PCIe) x1 card that adds two external RS-232 DB9 serial ports to a computer, often utilizing Oxford chipset technology for compatibility. Drivers are required to enable full functionality, particularly in Windows environments. Key Driver Installation Information:
Driver Identification: In Windows Device Manager, this card frequently appears under "Other PCI Bridge Device" or as a "PCI Serial Port" requiring drivers.
Installation Method: If a driver CD is not available, download the appropriate driver (often labeled for Oxford, PLX, or Delock PCIe Serial) and use Device Manager to update the driver, pointing to the unzipped folder.
Compatible Systems: These drivers generally support Windows 7, 8, 8.1, 10, and 11.
Chipset Info: The card is often associated with Oxford chipsets, which are known for supporting 16C950 UART with a 128-byte FIFO. Common Fixes:
Error Code 28: If Device Manager reports "the drivers for this device are not installed" (Error 28), it indicates a missing or improperly installed driver.
Missing Drivers: Ensure the "Include subfolders" box is checked when directing Windows to search for the driver.
For the most stable performance, particularly with specialized hardware, look for drivers that are Microsoft WHQL Certified.
To provide the exact driver download or installation file, could you please confirm:
Which Windows operating system are you using (e.g., Windows 10/11 64-bit)?
Does your device manager show the device as a "PCI Serial Port" or another error? Delock PCI Express Card to 2 x Serial If you can share a photo of the
Description. The PCI Express card by Delock expands a PC by two external serial ports. Different devices such as scanner, printer, Delock PCI Express Card to 1 x Parallel IEEE1284
The PI40952-3X2B isn't a single device, but a versatile PCI-Express expansion card used by various brands like DeLOCK, Manhattan, and EXONE.
Because it is a hardware component rather than a finished consumer product, finding the "driver" often feels like a treasure hunt. Here is the story of how to get yours working. 🛠️ The Identity of the Card
This card usually serves one of two purposes depending on the specific model you have: A Parallel Port (LPT): Used for older printers.
Dual Serial Ports (RS-232): Used for industrial equipment or specialty hardware.
The "brain" of this card is almost always the Oxford Semiconductor OXPCIe952 chip. 🔍 How to Find Your Driver
Since different companies rebranded the same board, your best bet is to look for drivers based on the chipset, not the model number. 1. The Direct Source
The most reliable drivers are for the Oxford OXPCIe952. Many users have success with:
Manufacturer Support: Checking the DeLOCK Support Page for model 89219, which uses this exact board.
Windows Update: If you plug the card in, Windows 10 and 11 often find the "Oxford Semiconductor" driver automatically. 2. The Manual Search
If Windows doesn't see it, you can find the exact match using Hardware IDs: Right-click the Start button and open Device Manager.
Look for an "Unknown Device" or "PCI Communications Controller" with a yellow exclamation mark. Right-click it -> Properties -> Details tab. Select Hardware Ids from the dropdown.
Look for a string like VEN_1415&DEV_C158 (the ID for the OXPCIe952 chip). 💡 Pro-Tip for Legacy Users
If you are trying to use this on FreeDOS or older specialized systems, be aware that this card often operates in "Native" mode (mapped to memory) rather than "Legacy" mode (mapped to I/O). If your old software can't "see" the port, it might be because the software expects a specific I/O address (like 378h) that these modern PCIe cards don't use by default. To help you get the exact right file, could you tell me:
What Operating System are you using (Windows 10, XP, Linux)? Are you trying to connect a printer or a serial device? Do you see any error codes in your Device Manager? PI40952-3X2B PCI-Express Printer Port Adapter Card
PI40952-3X2B is a versatile PCI-Express adapter card, most commonly found as a dual RS232 serial port Batch:
expansion, though some variants offer a parallel (LPT) port instead. It is typically branded by manufacturers like Product Specifications Interface: PCI Express x1 (V1.1 compatible). Serial Variant: 2 x RS232 (DB-9) male ports. Parallel Variant: 1 x Parallel (DB-25) female port. Often powered by the Oxford OXPCIe952 Form Factor:
Low-profile design, making it compatible with mini-PCs and small form factor (SFF) desktops. Data Rates: Supports serial speeds up to 230.4 Kbps (Oxford) or 460.8 Kbps Performance Review Reliability:
Users and sellers frequently note its functionality in legacy industrial environments for connecting scanners, printers, or laboratory equipment. Compatibility:
The card is widely compatible with Windows 7 through Windows 11, as well as Linux kernels which often have native support for these chipsets. Ease of Use:
While often sold "as-is" without a driver CD in the used market, drivers are generally available via the manufacturer's website or third-party repositories. Driver Information
If you are looking for the driver, it is critical to identify the specific chipset on your card (usually the largest black square chip): Oxford Chipset: Drivers can be found on the Delock Support Page for similar models. WCH Chipset: Drivers are often hosted by TITAN Electronics for universal PCI-E serial cards. Automatic Detection:
Most modern Windows versions (10/11) may automatically detect and install the driver through Windows Update once the card is seated. Shopping Options
This card is primarily available through electronics refurbishers and second-hand marketplaces: Refurbished Units: Available at retailers like D-Stock Micro Used Listings: Frequently listed on for prices ranging from approximately $15.00 to $55.00 USD depending on the seller and condition. exact chipset version for your specific OS installation? Delock PCI Express Card to 2 x Serial
I’m unable to locate a specific product or post titled “pi40952 3x2b driver” — it doesn’t match any known IC, driver board, or widely documented part number as of my current knowledge.
However, based on the naming pattern, here’s what’s likely happening:
Design note: prefer batch writes with bitmasking to reduce bus operations; provide atomic update functions to avoid transient invalid states.
Document No.: TR-PI40952-001
Revision: 1.0
Date: [Insert Date]
Author: [Your Name]
Subject: Evaluation of PI40952 3x2B Driver
To characterize the functionality, electrical specifications, and application suitability of the PI40952 3x2B driver.
| IN1 | IN0 | OUT1 | OUT0 | |-----|-----|------|------| | 0 | 0 | 0 | 0 | | 0 | 1 | 0 | 1 | | 1 | 0 | 1 | 0 | | 1 | 1 | 1 | 1 |
(If not a buffer but a decoder/driver, adjust accordingly)