The USB-FBS-232P0-9F Go to product viewer dialog for this item. is a specialized USB-to-RS232 programming cable designed for the FATEK FBs series of Programmable Logic Controllers (PLCs). To use this cable, you must install the correct Virtual COM Port (VCP) driver, which allows your computer to communicate with the PLC through a standard USB port. USB-FBS-232P0-9F Driver Download & Compatibility Most versions of this cable utilize either the FTDI (FT232RL) or Prolific (PL2303) chipsets, though some third-party variants may use the CH341 chip.
Complete Guide: USB-FBS-232P0-9F Driver Download & Installation Struggling to get your USB-to-Serial adapter working? If you are reading this, you likely have a device labeled USB-FBS-232P0-9F in your hand, and your computer doesn’t recognize it. You are not alone. This chipset is widely used for connecting legacy serial (RS-232) devices—such as barcode scanners, CNC machines, GPS receivers, or industrial controllers—to modern laptops and PCs without a COM port. In this guide, we will cover everything you need to know: safe driver sources , step-by-step installation for Windows 11/10/8/7, macOS, and Linux, plus solutions to common errors like “Code 10” or “Device cannot start.” What is the USB-FBS-232P0-9F? First, let’s decode the name. USB-FBS-232P0-9F is not a brand name but a generic product identifier for a USB 2.0 to RS-232 male DB9 serial adapter cable. It typically uses a Prolific PL-2303 or a clone chipset (often PL-2303HX, PL-2303TA, or similar). Because of widespread counterfeiting, generic adapters often require specific drivers. Key identifiers:
USB end: Type-A male (plugs into computer) Serial end: DB9 male (plugs into device) Chipset: Prolific PL-2303 series or compatible
The Critical Warning: Don’t Use Driver Updaters Before we show you where to download, a strict warning: Avoid third-party driver updaters, “driver fixer” tools, or random .exe files from pop-up ads. These often contain malware or adware. Always download directly from the chipset manufacturer’s official website or a verified Microsoft catalog. Step 1: Identify Your Chipset Version Because counterfeit PL-2303 chips are common, generic adapters may not work with the latest official Prolific drivers. Older drivers often work better with clones. To check your chipset (Windows): Usb-fbs-232p0-9f Driver Download
Plug in the USB-FBS-232P0-9F adapter. Open Device Manager (Right-click Start button > Device Manager). Look under Ports (COM & LPT) . If you see a yellow exclamation mark, drivers are missing/faulty. Right-click the unknown device > Properties > Details > Hardware Ids.
If you see USB\VID_067B&PID_2303 , it’s a Prolific PL-2303. If you see other VID numbers, it may be a different clone (e.g., CH340, FTDI). Most USB-FBS-232P0-9F units use VID_067B. Step 2: Official Driver Download Sources Here are the only safe locations to download the driver for your USB-FBS-232P0-9F. For Prolific PL-2303 Chipset (Most Common) Primary Source: Prolific’s Official Website
Go to www.prolific.com.tw Navigate to Support > Downloads . Select PL-2303 Series . Choose your operating system. For Windows 11/10, download PL-2303 Driver Installer (v1.14.0 or later) . Note: Prolific’s latest drivers intentionally block counterfeit chips. If your adapter is fake (common for unbranded USB-FBS-232P0-9F cables), you will see a Code 10 error (This device cannot start). In that case, see the “Legacy Drivers” section below. The USB-FBS-232P0-9F Go to product viewer dialog for
Alternative: Microsoft Update Catalog
Search for “Prolific USB-to-Serial Comm Port” on catalog.update.microsoft.com . This provides WHQL-signed drivers.
For CH340 or Other Clones (Less Common) If the Prolific driver fails, your USB-FBS-232P0-9F may contain a WCH CH340 chip. Download from: You are not alone
Official WCH.cn site: Search for “CH340 driver” GitHub: “ch341ser” (community trusted)
Step 3: Step-by-Step Installation Guide (Windows 10/11) Method A: Automatic (If Windows finds it)