We had this now installed for over 2 years or so, its been running great! from the 64k to the 2mb! thats such an improvement!
I can not talk about price exactly as it was intro price for us, but you can call/email and get a quote, the price I will say is about less then half of what the OEM dealer Matsuura would ask, cause we had that quoted too, im sure 1mb will be a little cheaper which would make it even more appealing.
I believe they request your original board, there is quite the detailed process on how to back up your machine param and all the stuff, as you will have to reload it, but anyone that can follow instructions and has some time can do it.
Yasnac Memory Upgrades
This was installed on late 90's MC-510VG mill.:banana: