As Lopo's points out it's only a RAM memorey expansion , which I understand to be limited to 8mb.
Your proberly better looking at 1230 accelerator/ram expansion boards if your looking to improve your gaming experience just my opinion of course , as I used an old viper1230 with 8mb for years and it served very well .
However as allways, I think you are better to take advice form a number of sources here depending on what you plan to run on it
