HP48GX Interface to a PC


I have a 48GX and in the 1990s used to plug that into a PC via the serial interface.

Does anyone know how to hook a 48 to the newer pcs?


You have pretty much only two options:

1. Get a USB-to-RS232 adapter for your PC, or

2. Buy a USB-to-HP48 cable from eBay.

In both cases, you can use Conn4X (check hpcalc.org) to do your file transfers.


If you still have the serial cable you'll only need a USB/RS-232 converter. An FTDI converter, like this one is better, but I think cheaper models might also do.



I use the Rhino CBU-DB9 "USB to Serial 9-Pin" converter with the HP serial cable. It works perfectly on Windows 7 (both 32-bit and 64-bit) and older USB-aware versions of Windows. I do not know if it works with Windows 8.

Only $10 at Fry's: http://www.frys.com/product/7039201

... and $12 at Wal-Mart: http://www.walmart.com/ip/Rhino-CBU-DB9-USB-to-Serial-Cable/20864876

... and £5.74 from the manufacturer: http://www.rhinocables.co.uk/usb-to-serial-converter~341


GREAT ! Bought! Where do you guys go to get 48GX software off of the inernet? Thanks. Last time I installed GX stuff was 1994!


Try http://hpcalc.org


Thanks! Any favourites?


There was a good one with a periodic table from some time ago.

Possibly Related Threads…
Thread Author Replies Views Last Post
  HP48GX screen replacement Francisco Quiles 9 3,733 10-03-2013, 09:17 PM
Last Post: Francisco Quiles
  HP Prime "Symb" interface (bug?) Han 8 2,346 09-13-2013, 12:48 PM
Last Post: Chris Tvergard
  Virtual HP-IL Video Interface ILVideo the 2nd! Christoph Giesselink 3 1,514 08-15-2013, 06:49 PM
Last Post: Sylvain Cote
  HP 85 Serial Interface; INPUT Example? inaki 1 1,210 06-12-2013, 11:09 PM
Last Post: Paul Berger (Canada)
  HP48GX everything works perfectly except the 'ON' key? Bruce Larrabee 5 1,970 10-22-2012, 05:41 AM
Last Post: Bruce Larrabee
  Virtual HP-IL 40 col. video interface simulation Christoph Giesselink 10 3,122 08-19-2012, 06:46 PM
Last Post: Richard Wagoner
  Cursors on Video Interface HP82163 Christoph Giesselink 4 1,813 07-21-2012, 02:57 PM
Last Post: Sylvain Cote
  HP48GX Connectivity John W Kercheval 6 2,335 05-22-2012, 06:45 AM
Last Post: Michael Lopez
  copyrom.lib on hp48gx David Griffith 0 817 04-03-2012, 07:31 PM
Last Post: David Griffith
  41CL & EMU41 & IL2000 interface system Christoph Klug 0 888 03-22-2012, 05:23 PM
Last Post: Christoph Klug

Forum Jump: