Hi, I'm new here and looking for help with a DME problem

[redp911]

I have a Bosch 0 261 200 051 and need a new EPROM to eliminate possible issues with that existing.

My DME has a 24 pin socket and I require a 1267355211 EPROM unless there is a better choice. DME fitted to UK 1984 Porsche 911.

Any help or suggestions appreciated.