Features and Compatibility:
>> K2600 <<is compatible with 72-pin SIMM 16 MB, 64 MB, 128 MB (32 MB non-advised) - Max Size 128 MB
*** REFERENCE: RAM16MoKurz - RAM64MoKurz - RAM128MoKurz

>> K2500 <<latest generation (it is easy because it repre possde a serial number consisting of 9-11 characters with the 7th characters the letter K, Y or Z.
It is compatible with 72-pin SIMM 16 MB, 64 MB (128 MB RAM maximum)
*** REFERENCE: RAM16MoKurz - RAM64MoKurz

>> K2500 <<1st gnration serial number composed characters 5-6
It is compatible with 30-pin SIMMs: 1 MB, 4 MB or 16 MB (8 MB non-advised). 128 MB RAM maximum
The K2500 1st gnration possde 8 RAM slots available.
*** REFERENCE: * RAM4Mo Kurz - RAM16MoKurz (* special order)

>> K2000 <<(including versions K2000 - V3 - VP - K2Vx)
It is compatible with 30-pin SIMMs: 1 MB, 4 MB or 16 MB (8 MB non-advised). 64 MB RAM maximum
The K2000 possde 4 RAM slots available.
*** REFERENCE: * RAM4Mo Kurz - RAM16MoKurz (* special order)