AirLink101 AC-USBS Driver Download (Official)

AirLink101 Drivers

The AC-USBS is a device manufactured by AirLink101. You can unlock features and improve performance by updating its driver. This version of "" is rated (1 out of 5 stars) based on 1,394 downloads and 10 reviews. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 492.0 KB.

10 Ratings (see all reviews)

Supported Models


Prolific USB-to-Serial Bridge

Prolific USB-to-Serial Comm Port

USB to Serial Port




Supported Operating Systems

Windows XP, Windows 2000, Windows ME, Windows 98SE

File Name


v3.0 (15-Oct-2004) (2003-07-16) via .inf

Additional Notes


AC-USBS USB Serial Adapter

Uploaded By

Sivakumar (DG Staff Member) on 13-Jun-2006

Most Helpful Reviews

Erik K
Tested on Windows 7 x64
27 Jun 2017
(6 minutes after download)

Installation: 4 out of 5
Stability: 1 out of 5
Compatibility: 1 out of 5
"Driver is horrible, it freezes the serial connection, breaks the rest of the USB ports, and occasionally causes a blue-screen of death; all require a re-boot to make it work for a few moments before it freezes or crashes again."
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See all AirLink101 AC-USBS ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
UC-320/Linux 2.4.x/Makefile 942 bytes 13 Feb 2002
UC-320/Linux 2.4.x/ModemUserGuide.doc 27.1 KB 15 Dec 2003
UC-320/Linux 2.4.x/pl2303.c 20.6 KB 13 Feb 2002
UC-320/Linux 2.4.x/pl2303.h 3.6 KB 13 Feb 2002
UC-320/Linux 2.4.x/readme.txt 282 bytes 15 Mar 2002
UC-320/Linux 2.4.x/usb-serial.h 8.3 KB 13 Feb 2002
UC-320/Linux 2.4.x/usbserial.c 46.9 KB 13 Feb 2002
UC-320/Macintosh/OS_10.x/ 23.2 KB 12 Mar 2004
UC-320/Macintosh/OS_10.x/ 8 bytes 10 Apr 2003
UC-320/Macintosh/OS_10.x/ 257 bytes 10 Apr 2003
UC-320/Macintosh/OS_10.x/ 35.6 KB 10 Apr 2003
UC-320/Macintosh/OS_10.x/ 81.9 KB 10 Apr 2003
UC-320/Macintosh/OS_10.x/ 49 bytes 10 Apr 2003
UC-320/Macintosh/OS_9.1.x/PL2303_PALM_0529_01.SIT 7.5 KB 14 Jun 2001
UC-320/Windows 2000/DRemover98_2K.exe 135.2 KB 7 Nov 2001
UC-320/Windows 2000/ 7.6 KB 21 Aug 2003
UC-320/Windows 2000/ser2pl.inf 1.9 KB 16 Jul 2003
UC-320/Windows 2000/ser2pl.sys 43.3 KB 16 Jul 2003
UC-320/Windows 98/DRemover98_2K.exe 135.2 KB 7 Nov 2001
UC-320/Windows 98/SER9PL.sys 34.3 KB 27 Oct 2003
UC-320/Windows 98/SERSPL.INF 2.3 KB 23 May 2001
UC-320/Windows 98/SERSPL.VXD 26.7 KB 27 Oct 2003
UC-320/Windows 98/SERWPL.INF 8.6 KB 25 Feb 2004
UC-320/Windows 98/ser2pl.sys 43.1 KB 1 Dec 2003
UC-320/Windows CE/USBSER.ARM.CAB 22.1 KB 17 Mar 2004
UC-320/Windows CE/ce_pl2303_043003[1] 17.0 KB 17 Mar 2004
UC-320/Windows ME/DRemover98_2K.exe 135.2 KB 7 Nov 2001
UC-320/Windows ME/SER9PL.sys 34.3 KB 27 Oct 2003
UC-320/Windows ME/SERSPL.INF 2.3 KB 23 May 2001
UC-320/Windows ME/SERSPL.VXD 26.7 KB 27 Oct 2003
UC-320/Windows ME/SERWPL.INF 8.6 KB 25 Feb 2004
UC-320/Windows ME/ser2pl.sys 43.1 KB 1 Dec 2003
UC-320/Windows XP/DRemover98_2K.exe 135.2 KB 7 Nov 2001
UC-320/Windows XP/ 7.6 KB 21 Aug 2003
UC-320/Windows XP/ser2pl.inf 1.9 KB 16 Jul 2003
UC-320/Windows XP/ser2pl.sys 43.3 KB 16 Jul 2003

How to Update AC-USBS Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the AC-USBS driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter AirLink101 AC-USBS into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the AirLink101 Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

This website is not affiliated with AirLink101. All company names/logos are properties of their owners.
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