The images are pretty small. I can't read what's printed on the adapters, keys, and cartridges.
Looks like you have two Primary Domestic cartridges but I can't tell what years. That many personality keys tells me the PO had a cartridge at one time that covered into the 2000's.
If you have K-2A, K-7, K-9, K-12, K13 you'll be fine talking to 1994-1999 Domestic. K-5A will cover the 1990's Asian stuff.
Hang onto all of those keys. The keys will work with a Solus EESC310, Solus Pro EESC316, and MODIS EEMS300. Some personality keys can be very pricey. K20 is $54 new from the tool truck and not much cheaper used for some reason.
You have most of the Domestic OBDI adapters. Both Chrysler adapters, RENIX Jeep, A couple GM ALDL adapters, MULTI-1, Ford 1-B for EEC IV, a Mitsubishi adapter, and possibly another Asian OBDI data adapter. You also have two OBDII adapters with the personality key slots that look to be in decent shape.
My tool came with a couple other Ford data cable adapters for the 1980's ECMs & ABS stuff but they're like the GM-2 & GM-3 ALDL adapters... I'll never use them. Keep em if you've got em but don't bother looking for them if you don't have a rig that needs them.
It looks like you have the positive power cables which is very useful. You don't have to build your own. If you end up needing the ground wire for Asian and 80's Fords it's very easy to make.
The outer jacket on your main data cable is broken and the individual wires are exposed. Mine was a lot lot lot worse. It had chunks missing from the jacket and the wires that were exposed at the end were actually breaking off.
The 6'ers are $30ish and 10'ers are $36ish brand new. The jacket on the new ones is nice and flexible so it should be quite a while before it gets stiff and cracked.
https://www.ebay.com/sch/i.html?_fro...cable&_sacat=0
I found a couple manuals on the Snap On web site and I've copied them to Mediafire JIC they decide to completely stop serving them up.
Snap on Software Manuals;
My printed US Domestic manual has details on Chrysler, Ford, GM, & Jeep along with information on plugging the MT2500 into the Counselor II for a larger display.