This EFData SDM-650B Satellite Modem should probably be sent to the museum of satellite equipment. If you have seen one of these but never used it, then you can brag to your children about how things use to be in our business.
If you have used one of these modems, then you should be bragging to your grandchildren!
We have two of these modems, neither are in working condition and can only be sold for parts. The boards slip out easily and if you have one of these old modems that you still need to operate then you should talk to us about buying this for the spare parts.