Syba SB-50803 Driver Download (Official)
Download the latest version of the SB-50803 driver for your computer's operating system. This update - "rtl8139_drv_all_v1.21.zip" - has an average rating of 5 out of 5 stars based on 9 reviews, and has been downloaded 111 times. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 868.5 KB.
Supported Models
SB-50803
Realtek RTL8139/810X Family CardBus Fast Ethernet NIC
Realtek RTL8139/810X Family CardBus Fast Ethernet NIC(for Win95A)
Realtek RTL8139/810X Family PCI Fast Ethernet NIC
Manufacturers
Supported Operating Systems
Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95, Linux, DOS
File Name
Versions
1.215.397.0823.2001 (2001-08-23) via .inf
Additional Notes
SB-50803
CardBus Wired Network Adapter
CardBus Ethernet Adapter
RTL8139 Cardbus driver set v1.21 for DOS, Windows 95 /98 / 98SE / Me / NT 4.0 / 2000 / XP, Netware, Linux.
Uploaded By
Purushothaman (DG Staff Member) on 25-Mar-2005
Related Driver Updates
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| rtl8139/cardbus/filepath.lst | 208 bytes | 2 Mar 2000 |
| rtl8139/cardbus/help8139.exe | 37.9 KB | 14 Aug 1997 |
| rtl8139/cardbus/Linux/copying.txt | 18.1 KB | 4 Aug 2000 |
| rtl8139/cardbus/Linux/install.txt | 1.7 KB | 30 May 2000 |
| rtl8139/cardbus/Linux/kern_compat.h | 18.8 KB | 3 Aug 2000 |
| rtl8139/cardbus/Linux/rtl8139.c | 51.9 KB | 3 Aug 2000 |
| rtl8139/cardbus/mainmenu.txt | 399 bytes | 2 Mar 2000 |
| rtl8139/cardbus/NDIS2DOS/oemsetup.inf | 641 bytes | 1 Jun 1998 |
| rtl8139/cardbus/NDIS2DOS/protocol.ini | 65 bytes | 27 May 1998 |
| rtl8139/cardbus/NDIS2DOS/readme.txt | 805 bytes | 28 Jul 1999 |
| rtl8139/cardbus/NDIS2DOS/rtbios.com | 2.2 KB | 31 May 1999 |
| rtl8139/cardbus/NDIS2DOS/rtl8139.nif | 2.1 KB | 22 Jun 1999 |
| rtl8139/cardbus/NDIS2DOS/rtpci.exe | 52.2 KB | 29 Aug 2001 |
| rtl8139/cardbus/NDIS2DOS/rtsnd.dos | 53.8 KB | 28 Jul 1999 |
| rtl8139/cardbus/NWCLIENT/encbodi.bat | 29 bytes | 5 May 1999 |
| rtl8139/cardbus/NWCLIENT/net.cfg | 2.0 KB | 4 Nov 1997 |
| rtl8139/cardbus/NWCLIENT/readme.txt | 260 bytes | 2 Mar 2000 |
| rtl8139/cardbus/NWCLIENT/rtbios.com | 2.2 KB | 31 May 1999 |
| rtl8139/cardbus/NWCLIENT/rtpci.exe | 52.2 KB | 29 Aug 2001 |
| rtl8139/cardbus/NWCLIENT/rtsodi.com | 55.5 KB | 16 Aug 2001 |
| rtl8139/cardbus/Nwserver/311/ethertsm.nlm | 9.2 KB | 23 Aug 1994 |
| rtl8139/cardbus/Nwserver/311/lslenh.nlm | 11.6 KB | 16 Nov 1992 |
| rtl8139/cardbus/Nwserver/311/monitor.nlm | 117.8 KB | 26 Oct 1992 |
| rtl8139/cardbus/Nwserver/311/msm31x.nlm | 21.3 KB | 23 Aug 1994 |
| rtl8139/cardbus/Nwserver/311/patchman.nlm | 9.6 KB | 4 Feb 1993 |
| rtl8139/cardbus/Nwserver/311/rtssrv.lan | 57.3 KB | 26 Jun 2000 |
| rtl8139/cardbus/Nwserver/312/ethertsm.nlm | 13.1 KB | 8 Dec 1997 |
| rtl8139/cardbus/Nwserver/312/msm31x.nlm | 69.0 KB | 2 Dec 1997 |
| rtl8139/cardbus/Nwserver/312/nbi31x.nlm | 38.1 KB | 17 Oct 1997 |
| rtl8139/cardbus/Nwserver/312/rtssrv.lan | 57.1 KB | 26 Jun 2000 |
| rtl8139/cardbus/Nwserver/40/ethertsm.nlm | 9.4 KB | 29 Nov 1994 |
| rtl8139/cardbus/Nwserver/40/msm.nlm | 20.3 KB | 23 Nov 1994 |
| rtl8139/cardbus/Nwserver/40/rtssrv.lan | 57.3 KB | 26 Jun 2000 |
| rtl8139/cardbus/Nwserver/41X/ethertsm.nlm | 12.0 KB | 30 Apr 1998 |
| rtl8139/cardbus/Nwserver/41X/msm.nlm | 76.4 KB | 21 Apr 1998 |
| rtl8139/cardbus/Nwserver/41X/nbi.nlm | 20.4 KB | 17 Oct 1997 |
| rtl8139/cardbus/Nwserver/41X/rtssrv.bak | 9.3 KB | 29 May 2000 |
| rtl8139/cardbus/Nwserver/41X/rtssrv.lan | 57.1 KB | 26 Jun 2000 |
| rtl8139/cardbus/Nwserver/41X/rtssrv.ldi | 9.3 KB | 29 May 2000 |
| rtl8139/cardbus/Nwserver/42_5x/rtssrv.lan | 57.1 KB | 26 Jun 2000 |
| rtl8139/cardbus/Nwserver/42_5x/rtssrv.ldi | 9.3 KB | 29 May 2000 |
| rtl8139/cardbus/Nwserver/encbsrv.bat | 29 bytes | 5 May 1999 |
| rtl8139/cardbus/Nwserver/readme.txt | 248 bytes | 2 Mar 2000 |
| rtl8139/cardbus/Nwserver/rtbios.com | 2.2 KB | 31 May 1999 |
| rtl8139/cardbus/Nwserver/rtpci.exe | 52.2 KB | 29 Aug 2001 |
| rtl8139/cardbus/release.doc | 41.5 KB | 28 Sep 2001 |
| rtl8139/cardbus/RSET/encbrset.bat | 37 bytes | 5 May 1999 |
| rtl8139/cardbus/RSET/readme.txt | 241 bytes | 2 Mar 2000 |
| rtl8139/cardbus/RSET/rset8139.exe | 92.3 KB | 7 Jan 2000 |
| rtl8139/cardbus/RSET/rtbios.com | 2.2 KB | 31 May 1999 |
| rtl8139/cardbus/RSET/rtpci.exe | 52.2 KB | 29 Aug 2001 |
| rtl8139/cardbus/RTSPKT/encbodi.bat | 29 bytes | 5 May 1999 |
| rtl8139/cardbus/RTSPKT/readme.txt | 234 bytes | 2 Mar 2000 |
| rtl8139/cardbus/RTSPKT/rtbios.com | 2.2 KB | 31 May 1999 |
| rtl8139/cardbus/RTSPKT/rtpci.exe | 52.2 KB | 29 Aug 2001 |
| rtl8139/cardbus/RTSPKT/rtspkt.com | 58.4 KB | 25 Jun 2000 |
| rtl8139/cardbus/TXT/msc.txt | 1.0 KB | 25 Jan 2000 |
| rtl8139/cardbus/TXT/nt4diag.txt | 1.7 KB | 1 Mar 2000 |
| rtl8139/cardbus/TXT/nt5diag.txt | 1.7 KB | 1 Mar 2000 |
| rtl8139/cardbus/TXT/nwodi.txt | 645 bytes | 2 Mar 2000 |
| rtl8139/cardbus/TXT/nwsrv.txt | 248 bytes | 2 Mar 2000 |
| rtl8139/cardbus/TXT/trouble.txt | 2.1 KB | 1 Mar 2000 |
| rtl8139/cardbus/TXT/version.txt | 966 bytes | 1 Mar 2000 |
| rtl8139/cardbus/TXT/which.txt | 851 bytes | 25 Jan 2000 |
| rtl8139/cardbus/TXT/win2000.txt | 622 bytes | 2 Mar 2000 |
| rtl8139/cardbus/TXT/win95a.txt | 1.4 KB | 2 Mar 2000 |
| rtl8139/cardbus/TXT/win95b.txt | 751 bytes | 2 Mar 2000 |
| rtl8139/cardbus/TXT/win98.txt | 675 bytes | 6 Mar 2000 |
| rtl8139/cardbus/TXT/winnt4.txt | 480 bytes | 2 Mar 2000 |
| rtl8139/cardbus/WIN2000/netrts5.cat | 8.0 KB | 3 May 2001 |
| rtl8139/cardbus/WIN2000/netrts5.inf | 12.7 KB | 23 Aug 2001 |
| rtl8139/cardbus/WIN2000/rtl8139.sys | 25.4 KB | 23 Aug 2001 |
| rtl8139/cardbus/WIN95A/netrts.inf | 8.4 KB | 23 Jul 2001 |
| rtl8139/cardbus/WIN95A/rtl8139.sys | 36.9 KB | 23 Aug 2001 |
| rtl8139/cardbus/Win95b/netrts.inf | 7.5 KB | 23 Jul 2001 |
| rtl8139/cardbus/Win95b/rtl8139.sys | 37.4 KB | 23 Aug 2001 |
| rtl8139/cardbus/WIN98/netrts5.inf | 12.7 KB | 23 Aug 2001 |
| rtl8139/cardbus/WIN98/rtl8139.sys | 25.4 KB | 23 Aug 2001 |
| rtl8139/cardbus/WINDIAG/Nt4/magicpkt.txt | 829 bytes | 28 Aug 2000 |
| rtl8139/cardbus/WINDIAG/Nt4/nt4diag.exe | 166.5 KB | 26 Oct 2000 |
| rtl8139/cardbus/WINDIAG/Nt4/packet.sys | 13.4 KB | 7 Sep 2000 |
| rtl8139/cardbus/WINDIAG/Nt4/packet32.dll | 5.2 KB | 16 Oct 2000 |
| rtl8139/cardbus/WINDIAG/Nt4/readme.txt | 1.3 KB | 16 Feb 2001 |
| rtl8139/cardbus/WINDIAG/Win2000/magicpkt.txt | 829 bytes | 28 Aug 2000 |
| rtl8139/cardbus/WINDIAG/Win2000/packet.sys | 5.2 KB | 19 Sep 2000 |
| rtl8139/cardbus/WINDIAG/Win2000/packet32.dll | 5.7 KB | 25 Oct 2000 |
| rtl8139/cardbus/WINDIAG/Win2000/readme.txt | 1.3 KB | 26 Oct 2000 |
| rtl8139/cardbus/WINDIAG/Win2000/w2kdiag.exe | 166.5 KB | 26 Oct 2000 |
| rtl8139/cardbus/WINDIAG/Win9x/magicpkt.txt | 829 bytes | 28 Aug 2000 |
| rtl8139/cardbus/WINDIAG/Win9x/realdiag.exe | 122.6 KB | 16 Jan 2001 |
| rtl8139/cardbus/WINDIAG/Win9x/realpkt.vxd | 10.3 KB | 11 Mar 1999 |
| rtl8139/cardbus/WINDIAG/Win9x/realpkt5.vxd | 10.3 KB | 16 Apr 1999 |
| rtl8139/cardbus/WinMe/netrts5.inf | 12.7 KB | 23 Aug 2001 |
| rtl8139/cardbus/WinMe/rtl8139.sys | 25.4 KB | 23 Aug 2001 |
| rtl8139/cardbus/Winnt4/oemsetup.inf | 35.4 KB | 28 Sep 2001 |
| rtl8139/cardbus/Winnt4/resdlg.dll | 28.2 KB | 14 Jul 1999 |
| rtl8139/cardbus/Winnt4/rtl8139.sys | 37.4 KB | 23 Aug 2001 |
| rtl8139/cardbus/WinXP/netrts5.inf | 12.7 KB | 23 Aug 2001 |
| rtl8139/cardbus/WinXP/netrtsn.cat | 7.2 KB | 4 Sep 2001 |
| rtl8139/cardbus/WinXP/rtl8139.sys | 25.4 KB | 23 Aug 2001 |
How to Update SB-50803 Device Drivers Quickly & Easily
Step 1 - Download Your Driver
To get the SB-50803 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 Syba SB-50803 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 Syba SB-50803. 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
Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
Select the Driver tab.
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.