The IO1873 is a device manufactured by Siig. This driver - "PCI20x_WinXP_v20.00g.exe" - has been downloaded 20 times and is rated 5 out of 5 stars based on 6 reviews. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 118.8 KB.
IO1873
CyberParallel PCI
CyberSerial PCI 16C550
CyberSerial PCI 16C650
CyberSerial PCI 16C654
CyberSerial PCI 16C850
SIIG Cyber 2P1S PCI Board
SIIG Cyber 2P2S PCI Board
Windows XP
20.005.1.2600.6 (2002-08-06) via .inf
5.1.2600.0 (2002-01-18) via .inf
Quartet Serial 850 PCI
Four 16850 serial port I/O card with 4-port (DB9) fan-out cable
Andrews (DG Staff Member) on 11-Sep-2004
PCI\VEN_131F&DEV_2000&SUBSYS_2000131F
PCI\VEN_131F&DEV_2001&SUBSYS_2001131F
PCI\VEN_131F&DEV_2002&SUBSYS_2002131F
PCI\VEN_131F&DEV_2010&SUBSYS_2010131F
PCI\VEN_131F&DEV_2011&SUBSYS_2011131F
PCI\VEN_131F&DEV_2012&SUBSYS_2012131F
PCI\VEN_131F&DEV_2021&SUBSYS_2021131F
To get the IO1873 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 Siig IO1873 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 Driver Update Utility for Siig IO1873. It is a software utility which automatically finds and downloads the right driver.
After downloading your new driver, installation is the next step. On Windows, utilize the built-in Device Manager utility to manage this process. This tool provides a comprehensive view of all system-recognized devices and their associated drivers. To complete the installation, a system restart is typically required 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.
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| cbports.dll | 40.4 KB | 2 Mar 2002 |
| cbserial.sys | 53.2 KB | 7 Aug 2002 |
| CYBER20X.INF | 4.8 KB | 7 Apr 2003 |
| portmon2.sys | 6.8 KB | 11 Nov 2003 |
| siig20x.inf | 19.2 KB | 7 Apr 2003 |