A500 memory expansion for sale. I bought it a year a go and did not have time to install it. So it's NOS 
It gives you the possibility to have one of the below configuration
1. Chip 1, Slow 1.5 (requires cutting JP2)
2. Chip 1, Slow 1 (requires cutting JP2)
3. Slow 1.5 (no cutting)
4. Slow 1 (no cutting)
Does not work with 8A.1 motherboard revisions.
Price: 53 CAD (PayPal friends) + shipping
It gives you the possibility to have one of the below configuration
1. Chip 1, Slow 1.5 (requires cutting JP2)
2. Chip 1, Slow 1 (requires cutting JP2)
3. Slow 1.5 (no cutting)
4. Slow 1 (no cutting)
Does not work with 8A.1 motherboard revisions.
Price: 53 CAD (PayPal friends) + shipping