I'm looking for a 64MB flash module for my Agilent E4406A VSA. Like most units mine also comes with the 48MB flash module which isn't enough for installing all the options, and reloading/swapping option personalities is getting a bit annoying.
If someone has a 64MB module but could live with the smaller one (48MB is absolutelz fine if you only have one or two personality options installed anyways) then I could also offer an exchange + cash.
Would also consider buying a complete controller board with RAM and flash (as long as the flash module is the 64MB variant!).