Ts9900 Driver 43: Kinamax

Report: Analysis of "Kinamax TS9900 Driver 43" Query Date: October 26, 2023 Subject: Investigation of search term "Kinamax TS9900 driver 43" and associated technical context. 1. Executive Summary The search term "Kinamax TS9900 driver 43" appears to be a conflated or specific query related to USB-to-Serial adapters and Windows error codes. The investigation reveals that "Kinamax TS9900" is likely a variation of the Kinamax USB 2.0 to RS232 Serial Adapter (often associated with the Prolific PL-2303 chipset), while "43" almost certainly refers to Windows Device Manager Error Code 43 ("Windows has stopped this device because it has reported problems"). This report details the hardware identity, the likely cause of the "43" error, and the steps required to resolve the driver conflict. 2. Hardware Identification Product: Kinamax USB-to-Serial (RS-232) Adapter Common Model Numbers: Often marketed as "Kinamax USB 2.0 to RS232" or similar variations. While "TS9900" is not a standard primary model number for Kinamax, it may be a specific batch code, a misreading of a part number, or a variation of their generic serial adapters. Internal Chipset: The vast majority of Kinamax USB-to-Serial adapters utilize the Prolific PL-2303 chipset (specifically the PL-2303HXA, PL-2303HXD, or PL-2303TA).

Significance: This chipset is notorious for driver conflicts in modern Windows versions (8, 10, and 11) when using the latest official drivers.

3. Analysis of "Driver 43" The number "43" in this context is not a driver version number. It is a standard Windows status code. The Problem: Windows Code 43 When a user plugs in the Kinamax device, Windows Device Manager displays a warning triangle and states: "Windows has stopped this device because it has reported problems (Code 43)." Root Cause Analysis:

Fake/Clone Chips: The market is flooded with counterfeit Prolific chips used in generic adapters (including many older Kinamax models). Driver Mismatch: Prolific released updated drivers (versions 3.3.x and higher) designed to detect these counterfeit chips. When the newest driver detects a "fake" chip, it intentionally shuts the device down, resulting in Code 43. OS Compatibility: Windows 10 and 11 automatically install the newest driver via Windows Update, triggering the block on the older hardware. kinamax ts9900 driver 43

4. Resolution Procedure To resolve the Code 43 error with the Kinamax TS9900/Serial adapter, the user must install an older, compatible driver that allows the device to function. Step-by-Step Fix:

Open Device Manager:

Press Win + X and select Device Manager . Locate the device. It may be under "Ports (COM & LPT)" as "USB-Serial Controller" or under "Other Devices" with a yellow warning icon. Report: Analysis of "Kinamax TS9900 Driver 43" Query

Uninstall Current Driver:

Right-click the device and select Uninstall device . Check the box that says "Attempt to remove the driver for this device" (if available). Click Uninstall.

Install Older (Working) Driver:

Download the Prolific PL-2303 USB-to-Serial Driver Version 3.2.0.0 (dated roughly 2007-2009). This is widely available on driver repository sites or via the manufacturer's legacy support page. Note: Do not use the latest driver from the official Prolific website (v3.3+), as it will likely cause the Code 43 error again.

Manual Driver Update: